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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.
name-brand谷物和store-brand谷物的差价越来越夸张导致客户都去买store-brand，几个name-brand生产商计划将差价缩小到5年以前的水平以此吸引回客户。问weaken
choice a, name-brand谷物生产商之间的定价没有显著的差距，irrelevant，题干问的是决定降价的几个生产商
choice b, 转而去买store-brand谷物的客人对谷物的质量很满意。correct，说明即使降价这些客人也未必重新选择name-brand
choice d, 因为低的广告成本，商店可以以比name-brand更低的价格出售store-brand。irrelevant，可以解释为什么store-brand在这几年之间卖得比name-brand便宜
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