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题库 / Prep2007E1-CR-10
Jennifer: Video rental outlets in Centerville together handled 10,000 fewer video rentals in 1994 than in 1993. The decline in rentals was probably due almost entirely to the February 1994 opening of Videorama, the first and only video rental outlet in the area that, in addition to renting videos, also sold them cheaply.
Brad: There must be another explanation: as you yourself said, the decline was on the order of 10,000 rentals. Yet Videorama sold only 4,000 videos in 1994.
Which of the following, if true, would most seriously weaken the force of the objection that Brad presents to Jennifer's explanation?
In 1994 Videorama rented out more videos than it sold.
In 1994 two new outlets that rent but that do not sell videos opened in Centerville.
Most of the video rental outlets in Centerville rent videos at a discount on certain nights of the week.
People often buy videos of movies that they have previously seen in a theater.
People who own videos frequently loan them to their friends.
A选项不能完全解释，因为举例说明如果rental是5000，虽然它大于4000但是却不能完全解释10000的decline的原因。
B选项也是一样的道理，只是给出了另外一个原因，但是是否充分不能验证，也可以排除；另外B如果成立，是加强brad的说法，而不是削弱。
C如果成立也是加强brad的说法，而不是削弱
D是无关选项
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