GMAT-TN-3 VS PREP老-1

saven

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 ofswitching to store-brand cereals because they believe the name brand cereals tobe of better 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.


答案是B

The country of Ertland has neverimported apples in any significant quantity because consumers there generallyprefer the unique texture of Ertland-grown apples.  Nevertheless, apple growers from Kosolia, aneighboring country, plan to sell their apples in Ertland by sellingKosolia-grown apples at half the price of local apples and promoting them as anourishing, low-costalternative.

Which of the following, if true,casts most doubt on the viability ofthe plan by Kosolia's apple growers to sell their apples in Ertland?

(A) Most of the varieties of applesgrown in Ertland were originally derived from common Kosolian varieties.

(B) Consumers in Ertland tend tospend about the same proportion of their income on fresh fruits and vegetablesas do consumers in Kosolia.

(C) At times in the past, Ertlandhas exported significant quantities of apples to Kosolia.

(D) Some varieties of apples grownin Kosolia can be harvested throughout most of the year, whereas the varietiesgrown in Ertland can be harvested only during two months of the year.

(E) Profiles of Ertland-grown apples are high enough inErtland that growers, wholesalers, and retailers there could easily afford toreduce the price at which these apples are sold.

答案是E

求解释。

saven

我的意思是为何第一题不可以选择B呢，通过降低使原计划不可行。