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题库 / GMATLA-CR-30
Over the past five years, the price gap between name-brand cereals and less expensive store-brand cereals has become so wide that consumers have been switching increasingly to store brands despite the name brands' reputation for better quality. To attract these consumers back, several manufacturers of name-brand cereals plan to narrow the price gap between their cereals and store brands to less than what it was five years ago.
Which of the following, if true, most seriously calls into question the likelihood that the manufacturers' plan will succeed in attracting back a large percentage of consumers who have switched to store brands?
There is no significant difference among manufacturers of name-brand cereals in the prices they charge for their products.
Consumers who have switched to store-brand cereals have generally been satisfied with the quality of those cereals.
Many consumers would never think of switching to store-brand cereals because they believe the name brand cereals to be of better quality.
Because of lower advertising costs, stores are able to offer their own brands of cereals at significantly lower prices than those charged for name-brand cereals
Total annual sales of cereals-including both name-brand and store-brand cereals-have not increased significantly over the past five years.
NB和SB的比较，方法目的，方法是NB降价，目的是要吸引顾客。A说的among manufactures，相当于同样的竞争者，竞争者选项错误，排除；C就是废话，这里谈论的是要买SB的人，选项谈论不买SB的人，无关；D看到广告费就可以排除了，无关；E也是看到annual sales就可以排除，无关。再看B，反证法，如果顾客还没觉得SB的质量好，那么NB的价格一低，就可能转到NB去买。
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