Read the following early draft of an essay and then choose the best answer to the question or the best completion of the statement.
Passage
(1) Calling someone a rat may be complimentary. (2) In one experiment, University of Chicago neuroscientist Peggy Mason placed 30 pairs of rats in pens. (3) One rat was caged in the middle of the pen, while the other was free to run around. (4) Eventually, 23 of 30 ratis liberated their peers by pushing the cage door open with their heads or leaning against the door until it tipped over
(5) In another experiment, Mason gave rats access to two cages: in one cage was another rat, in the other was a pile of chocolate chips. (6) The rats eating the chocolate themselves. (7) Instead, most of the rodents opened both cages and shared the sweets (8) "In rat land, that is big." Mason says, claiming that this study is the first to show altruistic behavior in rodents.
(9) Not all scientists agree with the conclusion Mason drew from the experiment, however. (10) The jailbreaking rats might have only been trying to silence their cohorts' distressing alarm calls. (11) Mason counters that the alarm calls from the caged rats were not frequent enough to motivate their peers, but both parties are speculating at this point.
(12) Mason's new study is one of many that are changing how scientists think about empathy and altruism, namely: that such characteristics are not limited to people, as they once thought. (13) It now seems that many animals have evolved instincts to help others.
In the context of the passage, what sentence should be inserted immediately after sentence 11 (reproduced below)? Mason counters that the alarm calls from the caged rats were not frequent enough to motivate their peers, but both parties are speculating at this point.
- A. No one will ever really know why rats do what they do
- B. Mason is probably biased anyway because it was her experiment.
- C. More research must be done to arrive at an answer.
- D. Some scientists will complain no matter what
Correct Answer & Rationale
Correct Answer: C
Inserting "More research must be done to arrive at an answer" after sentence 11 effectively emphasizes the ongoing debate and the need for further investigation into the behaviors of rats. This aligns with the speculative tone of the discussion. Option A, while true, does not contribute to the dialogue about the necessity of additional research. Option B introduces bias but distracts from the main focus on research requirements. Option D generalizes scientists' behavior without addressing the specific context of Mason's argument, making it less relevant to the passage's intent.
Inserting "More research must be done to arrive at an answer" after sentence 11 effectively emphasizes the ongoing debate and the need for further investigation into the behaviors of rats. This aligns with the speculative tone of the discussion. Option A, while true, does not contribute to the dialogue about the necessity of additional research. Option B introduces bias but distracts from the main focus on research requirements. Option D generalizes scientists' behavior without addressing the specific context of Mason's argument, making it less relevant to the passage's intent.
Other Related Questions
Which is the best version of the underlined portion of sentence 13 (reproduced below)?
It might result in fewer trips to the store, which could keep fuel and cut down on pollution
- A. (as it is now)
- B. protect
- C. conserve
- D. support
Correct Answer & Rationale
Correct Answer: C
The phrase "cut down on pollution" suggests reducing waste, making "conserve" the most suitable choice. It aligns with the idea of using fewer resources, such as fuel, to achieve environmental benefits. Option A retains the original wording, which lacks precision and clarity. Option B, "protect," implies safeguarding resources but does not directly convey the idea of reducing usage. Option D, "support," suggests encouragement or assistance, which is not relevant to the context of minimizing trips and their environmental impact. Thus, "conserve" effectively captures the intended meaning of reducing consumption and pollution.
The phrase "cut down on pollution" suggests reducing waste, making "conserve" the most suitable choice. It aligns with the idea of using fewer resources, such as fuel, to achieve environmental benefits. Option A retains the original wording, which lacks precision and clarity. Option B, "protect," implies safeguarding resources but does not directly convey the idea of reducing usage. Option D, "support," suggests encouragement or assistance, which is not relevant to the context of minimizing trips and their environmental impact. Thus, "conserve" effectively captures the intended meaning of reducing consumption and pollution.
In context, which choice best replaces the underlined portion in sentence 14 (reproduced below)? Being able to meet others who speak Spanish has definitely helped me
- A. made the city feel more like home
- B. given me the chance to practice.
- C. made the city sort of tolerable.
- D. been a nice surprise.
Correct Answer & Rationale
Correct Answer: A
Option A effectively conveys that meeting Spanish speakers contributes positively to the speaker's sense of belonging in the city, enhancing their overall experience. This aligns with the context of feeling at home. Option B, while relevant, shifts focus to practicing the language rather than the emotional impact of community. Option C undermines the positive sentiment by suggesting the city is merely "tolerable," which diminishes the overall message. Option D, although it introduces a positive element, lacks the depth of connection implied by feeling at home, making it less suitable in this context.
Option A effectively conveys that meeting Spanish speakers contributes positively to the speaker's sense of belonging in the city, enhancing their overall experience. This aligns with the context of feeling at home. Option B, while relevant, shifts focus to practicing the language rather than the emotional impact of community. Option C undermines the positive sentiment by suggesting the city is merely "tolerable," which diminishes the overall message. Option D, although it introduces a positive element, lacks the depth of connection implied by feeling at home, making it less suitable in this context.
Should sentence 15 (reproduced below) be kept in the fourth paragraph? Actually, there's not much about living here that intimidates me anymore, and I've even gotten used to the noise
- A. Yes, because it is appropriate to the paragraph's purpose of creating a feeling of being in a busy city.
- B. Yes, because it reinforces the paragraph's focus on the narrator's evolving perspective about the city.
- C. No, because it blurs the paragraph's focus on the uncommon experiences the narrator has had in the city
- D. No, because it is irrelevant to the paragraph's topic about the challenges of moving from the country to the
Correct Answer & Rationale
Correct Answer: B
Option B effectively highlights the evolving perspective of the narrator, emphasizing personal growth and adaptation to city life. This aligns with the paragraph’s theme of transformation and acceptance. Option A, while noting the busy city atmosphere, fails to capture the deeper significance of the narrator's emotional journey, which is central to the paragraph’s intent. Option C incorrectly suggests that the sentence detracts from the focus on unique experiences; instead, it complements the narrator's journey by showcasing a shift in perception. Option D misinterprets the relevance of the sentence, as it actually contributes to understanding the challenges faced in adapting to urban life.
Option B effectively highlights the evolving perspective of the narrator, emphasizing personal growth and adaptation to city life. This aligns with the paragraph’s theme of transformation and acceptance. Option A, while noting the busy city atmosphere, fails to capture the deeper significance of the narrator's emotional journey, which is central to the paragraph’s intent. Option C incorrectly suggests that the sentence detracts from the focus on unique experiences; instead, it complements the narrator's journey by showcasing a shift in perception. Option D misinterprets the relevance of the sentence, as it actually contributes to understanding the challenges faced in adapting to urban life.
In context, where would the following sentence best be placed?
Any given instance of this practice may seem trivial, but the amount of waste quickly adds up.
- A. Before sentence 2
- B. Before sentence 4
- C. Before sentence 7
- D. Before sentence 13
Correct Answer & Rationale
Correct Answer: B
Placing the sentence before sentence 4 effectively emphasizes the significance of the practice being discussed, highlighting how seemingly minor actions contribute to larger waste issues. This context sets up a contrast between the triviality of individual instances and their cumulative impact. Option A, before sentence 2, lacks the necessary context to connect the triviality of the practice to its consequences. Option C, before sentence 7, is too far along in the discussion, diminishing the impact of the statement. Option D, before sentence 13, would disrupt the flow of ideas, as it is too late in the narrative to introduce the concept of cumulative waste effectively.
Placing the sentence before sentence 4 effectively emphasizes the significance of the practice being discussed, highlighting how seemingly minor actions contribute to larger waste issues. This context sets up a contrast between the triviality of individual instances and their cumulative impact. Option A, before sentence 2, lacks the necessary context to connect the triviality of the practice to its consequences. Option C, before sentence 7, is too far along in the discussion, diminishing the impact of the statement. Option D, before sentence 13, would disrupt the flow of ideas, as it is too late in the narrative to introduce the concept of cumulative waste effectively.