Manhattan Prep 一道逻辑题目求解，谢谢~

禾苗雨露sunyUID：3975269

The national infrastructure for airport runways and air traffic control requires immediate expansion to accommodate the proliferation of new private, smaller aircraft. The Federal Aviation Authority (the FAA) has proposed a fee for all air travelers to help fund this expansion. However, this fee would be unfair, as it would impose costs on all travelers to benefit only the few who utilize the new private planes.

Which of the following, if true, would allow the FAA to counter the objection that the proposed fee would be unfair?

(A) The existing national airport infrastructure benefits all air travelers.
(B) The fee, if imposed, will have a negligible effect on the overall volume of air travel.
(C) The expansion would reduce the number of delayed flights resulting from small private planes congesting runways.
(D) Travelers who use small private planes are almost uniformly wealthy or traveling on business.
(E) The Administrator of the FAA is appointed by the President, who is subject to national election

这是一道例题。按照S-W-Slash chart方法训练解答。书内关于选项A解释，看不明白。

书内关于A的解答：
Answer choice (A) suggests that the existing infrastructure benefits everyone who would be asked to pay the fee. This seems to speak to the question of fairness. However, the fee itself does not benefit the wide range of air travelers, and it is the fairness of the fee that is in question. This choice is best categorized as irrelevant.
自己的解答：
A应该是weaken the conclusion. 结论说收费不公平，前提/假设/论据是所有旅客都承担成本然而只有少数使用私人飞机的人获益。A是直接否定论据，所以认为是weaken。。。

书内解释应该怎么理解呢？谢谢~

影ziUID：3272529

帮顶

禾苗雨露sunyUID：3975269

自己顶一下

我是最棒的耶耶耶UID：3926573

这道题是选C吗？
A选项只说这个基础建设对所有乘机的人有好处，但是没有说这项收费（扩展基础建设）对所有人有好处。所以A不对。
A选项我认为如果把existing national airport infrastructure改为newly added expansion就对了。