请牛人帮忙看下答案是不是错的

xyzxf

In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria’s roads but are involved in 12 percent of all highway fatalities. The very largest trucks—those with three trailers—had less than a third of the accident rate of single-and double-trailer trucks.  Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.

Which of the following, if true, most seriously weakens the argument?

A. Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only.

B. No matter what changes Partoria makes in the regulation of trucking, it will have to keep some smaller roads off-limits to all large trucks.

C. Very few fatal collisions involving trucks in Partoria are collisions between two trucks.

D. In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.

E. In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks.

我选D。正确答案给的C。我想不明白，谢谢解答

zscsl

原文的意思：三个拖车的卡车比一个拖车两个拖车的卡车安全 因此为了降低出事故率 鼓励司机们开三个拖车的卡车
削弱题：三个拖车的也不能降低出事故率
A直接驳论点 卡车公司原来只让三个拖车的卡车走lightly traveled sections （三个拖车的卡车压根就不比他们安全）只是因为走的少 发生概率就低了
其实我做过这个题目但是选的不同其余四个备选是相同的
那个题目选的是：之前的三个拖车的卡车都是让最有经验的司机开的
道理是一样的 都是说明其实三个拖车的卡车并不是安全的

biantaishabi

举手同意楼上

kingapple25

同意A
1楼解释的很清楚~

caijia

谢谢1楼的解释~