请教一道GWD逻辑。。。教下我呀

chaomat1988

GWD5-Q29:
Over the past fiveyears, the price gap between name-brand cereals and less expensive store-brandcereals has become so wide that consumers have been switching increasingly tostore brands despite the name brands’ reputation for better quality.  To attract these consumers back, severalmanufacturers of name-brand cereals plan to narrow the price gap between theircereals and store brands to less than what it was five years ago.

Which of thefollowing, if true, most seriously calls into question the likelihood that themanufacturers’ plan will succeed in attracting back a large percentage ofconsumers who have switched to store brands?

A.   There is no significant difference amongmanufacturers of name-brand cereals in the prices they charge for theirproducts.
B.   Consumers who have switched to store-brandcereals have generally been satisfied with the quality of those cereals.
C.   Many consumers would never think of switchingto store-brand cereals because they believe the name brand cereals to be ofbetter quality.
D.   Because of lower advertising costs, storesare able to offer their own brands of cereals at significantly lower pricesthan those charged for name-brand cereals.
E.    Total annual sales of cereals—including bothname-brand and store-brand cereals—have not increased significantly over thepast five years.

为什么是B不是D呀

chaomat1988

顶，，，救命

40613011

同问，求高手啊。既然影响消费者决策的因素是价格，那么为什么是quality影响了消费者呢，如果name-brand cereals价格低于store-brand，而本身前者的quality就更高，那消费者肯定回back的啊。
所以削弱结论的是store-brand能够提供更低的价格，那么name-brand cereals降价就无效。我记得以前做过一题讲的是一个卖车的企业希望通过降价吸引客户，答案是它的竞争者也可以通过降价来应对。

cdwayne

反駁原文結論，使得name brand即便降價銷售策略(narrow the price gap)失敗。這邊縮短差距應是指 name brand >= store brand。

(B) 消費者對store brand滿意，怎麼還會願意多花錢買name brand呢？
(D) store brand低價的原因，和反駁無關。

davidliuscu

同意楼上
D提供的信息与原文一致，所以并未削弱一下推理：name brand降价-》缩小差价—》消费者回归
如果D项更加直白的写成：store brand will reduce their price to keep the original price gap.
这样才能起到有效的削弱