- Fri Jan 21, 2011 12:00 am
#22840
Complete Question Explanation
Main Point. The correct answer chioce is (A)
The author begins her argument with a rhetorical question: should the government abandon efforts to determine at what levels to allow toxic substances in our food supply. As you can expect, her answer is, "no." The rest of the stimulus merely explains why this would be a bad idea.
Because this is a Main Point question, having a solid grasp of the precise nature and scope of the conclusion will be crucial — in fact, it is often the only thing you need to do in order to answer the question correctly.
Answer choice (A): This is the correct answer choice. If the author's conclusion is that the government should not abandon efforts to determine at what levels to allow toxic substances in our food supply, this is just another way of saying that the government should continue trying to determine the acceptable levels for these substances.
Answer choice (B): It is clear from the stimulus that we can never be certain of having reduced the concentration of any substance to zero. The point is that since "zero" is not a viable alternative to determining the acceptable levels of toxic substances, further efforts are warranted. This answer choice is incorrect.
Answer choice (C): While this is an inference that we can draw from the stimulus, main point questions require us to summarize the argument. This answer choice is incorrect.
Answer choice (D): Just like answer choice (C), this is an inference that we can draw from the last sentence in the stimulus. However, main point questions require us to summarize the argument, not answer a Must Be True question. This answer choice is incorrect.
Answer choice (E): It is not necessary that the government refine its methods of detecting toxic substances in our food supply; the author is only advocating not abandoning the efforts to determine what constitutes an acceptable level of such substances. It is unclear what precisely such efforts will entail. This answer choice is incorrect.
Main Point. The correct answer chioce is (A)
The author begins her argument with a rhetorical question: should the government abandon efforts to determine at what levels to allow toxic substances in our food supply. As you can expect, her answer is, "no." The rest of the stimulus merely explains why this would be a bad idea.
Because this is a Main Point question, having a solid grasp of the precise nature and scope of the conclusion will be crucial — in fact, it is often the only thing you need to do in order to answer the question correctly.
Answer choice (A): This is the correct answer choice. If the author's conclusion is that the government should not abandon efforts to determine at what levels to allow toxic substances in our food supply, this is just another way of saying that the government should continue trying to determine the acceptable levels for these substances.
Answer choice (B): It is clear from the stimulus that we can never be certain of having reduced the concentration of any substance to zero. The point is that since "zero" is not a viable alternative to determining the acceptable levels of toxic substances, further efforts are warranted. This answer choice is incorrect.
Answer choice (C): While this is an inference that we can draw from the stimulus, main point questions require us to summarize the argument. This answer choice is incorrect.
Answer choice (D): Just like answer choice (C), this is an inference that we can draw from the last sentence in the stimulus. However, main point questions require us to summarize the argument, not answer a Must Be True question. This answer choice is incorrect.
Answer choice (E): It is not necessary that the government refine its methods of detecting toxic substances in our food supply; the author is only advocating not abandoning the efforts to determine what constitutes an acceptable level of such substances. It is unclear what precisely such efforts will entail. This answer choice is incorrect.