OG13 Diagnostic Test 34

guoxiaodishaji

34. A year ago, Dietz Foods launched a yearlong advertising campaign for its canned tuna. Last year Dietz sold 12 million cans
of tuna compared to the 10 million sold during the previous year, an increase directly attributable to new customers
brought in by the campaign. Profits from the additional sales, however, were substantially less than the cost of the
advertising campaign. Clearly, therefore, the campaign did nothing to further Dietz’s economic interests.
Which of the following, if true, most seriously weakens the argument?
(A) Sales of canned tuna account for a relatively small percentage of Dietz Foods’ profits.
(B) Most of the people who bought Dietz’s canned tuna for the first time as a result of the campaign were already loyal
customers of other Dietz products.
(C) A less expensive advertising campaign would have brought in significantly fewer new customers for Dietz’s canned
tuna than did the campaign Dietz Foods launched last year.
(D) Dietz made money on sales of canned tuna last year.
(E) In each of the past five years, there was a steep, industry-wide decline in sales of canned tuna.

为什么我觉得B正确？不正是因为贵的广告使得销售量增加才使得广告的cost有意义么，所以weaken了argument，但是E的话只是说在全行业的整体状况不好的情况下，此公司销售增加了，但是也没有体现出是因为广告运动增加的，而且就算是因为广告增加的也还是因为收入小于支出，还是亏损了。。。好困惑呀。。。

francoisyang

B的意思是，第一次因为广告买金枪鱼的都是dietz其他产品的忠实客户，这个完全没提新增收入和增加的成本的关系，如何削弱？
E的潜台词是，没有广告，卖得更少亏损得更多，所以广告值。