Prep - cr 31 请教

Hamburger530

31.(31838-!-item-!-188;#058&005455)

Manufacturers issue cents-off coupons to get consumers to try their brand of product with the hope that the consumers who try their brand will switch their brand loyalty.So in the initial marketing of their new brand X, Hartman Industries should issue cents-off coupons, thereby attracting a large segment of potential consumers as loyal customers.

Which of the following, if true, casts the most serious doubt on the likelihood that the marketing strategy recommended above will have the result that is claimed?

(A) Many consumers are unlikely to try new brands of products unless offered an inducement to do so.

(B) The consumers whose purchases are strongly influenced by cents-off coupons tend not to become loyal customers of any particular brand.

(C) Many grocery stores attract customers by doubling the face value of manufacturer's coupons.

(D) Typically less than one-third of the coupons issued by a manufacturer are redeemed by consumers.

(E) A marketing campaign that uses cents-off coupons is most effective when combined with a television advertising campaign.

我看得出为什么题目选B,因为突出conclusion中的as loyal customers。但请教D为什么不对呀？

haowang0116

The in formation provided in the argument is "Manufacturers issuecents-off coupons to get consumers to try their brand of product", however,  the conclusion is " thereby attracting a large segment ofpotential consumers as loyal customers."  there is a logic gap between the two issue. Information provided in choice D Do Weaken the availability of the strategy, HOWEVER, we need further information or assumption to support this reason.  Since choice B DIRECTLY undermines the likelihood, the correct answer should be B other than D.

李学子

少于三分之一的礼券能够被顾客收到，说明礼券还是能起到一定的作用的。无法削弱结论，个人认为应该算加强