PREP-1-75 sales of cigarettes 新问题

zinalini

In the year following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent.In contrast, in the year prior to the tax increase, sales had fallen one percent.The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.

Which of the following, if true, would most strengthen the argument above?


A. During the second year after the tax increase, cigarette sales increased by a significant amount.

B. The information available to consumers on the health risks of smoking remained largely unchanged in the period before and after the tax increase.

C. Most consumers were unaware that the tax on cigarettes was going to increase.

D. During the year following the cigarette tax increase, many consumers had less income, in inflation-adjusted dollars, than they had had in the previous year.

E. During the year after the tax increase, there was a greater variety of cigarettes on the market than there had been during the previous year.

看了几个本题的贴都没讨论E
OA:B
我选了E。
模考时我先觉得B可以，但是看到E我觉得更好。我的理解是：cigatette品种增加，那么销售量应该更大的。然而尽管品种增加了，销量仍然减少，证明tax对减少销量的影响很大，因而加强了。而B尽管排除了他因，但E更大程度上支持了。
请各位指点我的逻辑哪里出了错~谢谢~

zinalini

谢谢楼上指点哈~

月落乌啼

“cigatette品种增加，那么销售量应该更大的。”

可能就错在这里了。
比如你习惯一天吃3块蛋糕，当蛋糕口味由1种变成3种时，你有可能会3种味道各买一块，而不太会去买9块