求助prep2012 cr67

mil24

Which of the following most logically completes the argument?
A recent poll found that over 80 percent of the residents of Nalmed Province favored a massive expansion of the commuter rail system as a means of significantly reducing congestion on the province's highways and were willing to help pay for the expansion through an increase in their taxes. Nevertheless, the poll results contain an indication that expansion of the rail system, if successfully completed, might be unlikely to achieve its goal of reducing congestion, because________________.
A. most people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience （用排除法，也是选A）A讨论的是那80%喜欢 rail system expansion的人，而他们说在highyway上下班不堵车是他们希望的首要收益。
B. of the less than 20 percent of residents not counted asfavoring the expansion, about half claimed to have no opinion one way or the other 小部分人的立场的讨论，根本不影响方案决策，不是真正的原因
C. the twice-dairy periods of peak congestion caused by people commuting in cars have grown, over the past 20 years, from about an hour each to about two hours each 不相关
D. expanding the commuter rail system will require the construction of dozens of miles of new bed 不相关
E. the proposed expansion would make commuting by rail possible for many people who live in one suburb and work in a different suburb of the province's main city 这个是对方案成果的支持

kathyrn

谢谢！ 太绕了。

许油油

表示终于懂了！感谢解答！