Tom: Executives in this country make around 85 times what the average worker earns. This is an extraordinarily large disparity, and therefore public resentment over the size of executives' salaries is justified.
Martha: Such resentment is not justified, since wealth is created by taking risks and making decisions, actions most people prefer to avoid. Generous rewards for those who choose not to avoid these actions are both fair and necessary.
Tom: I think you misunderstood me. I'm not saying that people resent that there is a large disparity here between executives' salaries and workers' salaries, but rather they resent that it is atypically large: in other countries executives earn only 20 or 30 times what the average worker earns.
Tom responds to Martha's critique in which one of the following ways?Tom’s original point is not simply that executives earn more than workers. His point is that the gap is extraordinarily large. Martha responds as if Tom were objecting to high executive pay generally. Tom then clarifies that the resentment is about the
unusually large size of the gap, not about the mere existence of a gap.
(A) He strengthens his own position by tacitly agreeing to drop one of his original premises and introduces a new line of argument defending his original conclusion.
Wrong. Tom does not drop a premise. He clarifies what his original premise meant.
(B) He introduces evidence showing that a generalization Martha has made regarding the creation of wealth is unwarranted because it is not based on any evidence.
Wrong. Tom does not challenge Martha’s claim about wealth being created by risk-taking and decision-making.
(C) He undermines Martha's position by pointing out that Martha has made two contradictory assertions in support of the same claim.
Wrong. Tom does not claim that Martha contradicts herself.
(D) He undermines the relevance of Martha's objection by making explicit his grounds for judging that the disparity at issue is unjustifiably large.
Correct. Martha attacks the idea that large salary differences are unfair in general. Tom replies that his objection is more specific: the disparity is
atypically large compared with other countries. That makes Martha’s response less relevant to his actual argument.
(E) He raises considerations that call into question the grounds on which Martha bases her conclusion.
Wrong. Tom does not challenge Martha’s reasoning directly. He shows that her objection misses the specific basis of his claim.
Answer: (D)