求助狒狒逻辑里的一道题

云若 · 发表于 2016-4-22 16:27:40

75.Advertisers are often criticized for their unscrupulous manipulation of people’s tastes and wants. There is evidence, however, that some advertisers are motivated by moral as well as financial considerations. A particular publication decided to change its image from being a family newspaper to concentrating one sex and violence, thus appealing to a different readership. Some advertisers withdrew their advertisements from the publication, and this must have been because they morally disapproved of publishing salacious material.

Which one of the following, if true, would most strengthen the argument?

A.The advertisers switched their advertisements to other family newspapers.
B.Some advertisers switched from family newspapers to advertise in the changed publication.
C.The advertisers expected their product sales to increase if they stayed with the changed publication, but to decrease if they withdrew.
D.People who generally read family newspapers are not likely to buy newspapers that concentrate on sex and violence.
E.It was expected that the changed publication would appeal principally to those in a different income group.
为什么选c呢？怎么看感觉都是无关选项。。。求指点！！

大胡 · 发表于 2016-4-22 17:35:18

这道题是一个因果推理。
P：一个publication打算把他的形象从家庭报纸变成暴力的。一些广告商把他们的广告从这个publication中撤出了
C：广告商这个举动是因为他们从道德方面不赞同出版这一类的材料。

这道题的关键在于，作者想要通过premise的这两件事情说明，advertiser也会根据道德的原因投放广告。
题目要求strengthen，就是要排除他因，表明广告商就是因为道德的原因才不投广告的，而不是因为其他因素，比如赚不了钱或者等等。
C选项的意思是广告商预计他们的产品销量会增加如果他们继续在这个publication上投广告，如果他们不投了，销量会下降。
相当于排除了他因，否定了广告商不投广告可能是因为publication改变了策略赚不了钱才不投的。

云若 · 发表于 2016-4-25 11:39:06

大胡发表于 2016-4-22 17:35
这道题是一个因果推理。
P：一个publication打算把他的形象从家庭报纸变成暴力的。一些广告商把他们的广告 ...

懂了！！谢谢~~~

求助狒狒逻辑里的一道题

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