Which of the following, if true, most logically completes the passage?

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 easing 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 indicate that expansion of the rail system, if successfully completed, would be unlikely to achieve its goal of easing congestion, because _______.

1. most people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience

    B. of the less than 20 percent of residents not counted as favoring the expansion, about half claimed to have no opinion  one way or the other

    C . the twice-daily periods of peak congestion caused by people commuting in cars have grown from about an hour each to almost two and a half hours each in the past 20 years

     D.expanding the commuter rail system will require the construction of dozens of miles of new railbed(A)

    E.the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail

不明白为什么要选A……

     D.expanding the commuter rail system will require the construction of dozens of miles of new railbed(A)

    E.the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail

不明白为什么要选A……

     D.expanding the commuter rail system will require the construction of dozens of miles of new railbed(A)

    E.the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail

不明白为什么要选A……

most people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience

A选项的意思是不是说,大多数人之所以支持铁路系统的扩建,是因为他们把能缓解高速路的拥挤作为最原始的利益,就是初衷.

那么这跟题中的结论,即铁路系统扩建未必能达到缓解高速路拥挤的目的有什么关系呢?

这么来理解。米国人的思维怪~~~~~~

就是在那80%的人中大多数是支持改善铁路的，为什么呢？因为他们希望通过此举让更多的走铁路，从而走高速路的人少些，这样高速路就不会拥堵了，并且这群人were willing to help pay for the expansion through an increase in their taxes。［真是有钱哪］。很可惜的是，该计划不能实施是８０％的大多数都这样想，也即，即便铁路修好了，改善了，这些人仍旧会走高速路，呵呵，所以照样拥堵，所以这个计划实施了等于没有实施。（ｐｓ：这些人都有钱，都想出钱让别人去做火车，自己开车外出多方便啊。），所以A选项中说：during their highway commute as the primary benefit they would experience

呵呵，不知道你理解没有？我的思维本来也怪。

 A是这个意思。“during THEIR highway commute “说明A中的人更喜欢开车。有了轻轨，他们也开车。所以轻轨扩建了，他们也不会搭乘。所以请贵会客流不足，公路照样拥挤。

希望我说明白了。

有问题有问题.

选A的话就承认了这样一个assumption:
该地的交通堵塞绝大多数是由本地人造成的.

否则,例如:该地有80万人(占本地居民的80%)每天参与交通堵塞,然而另有100万周围城市的人,每天也参与交通堵塞(到该地工作).
这种情况下,本地居民愿意花钱让周围城市的人坐轻轨来上班,这也是合情合理的.

我觉得只有C靠谱.对于E,周围城市的人都乘轻轨来上班了,high way交通堵塞自然就减缓了,于是加强了结论(achieve its goals).