麻烦给看下这道og13的逻辑题 谢谢

maomaoge007

95. Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a creditcard logo. Consumer psychologists hypothesize that simply seeing a credit-card logo makes many creditcard holders willing to spend more because it reminds them that their spending power exceeds the cash they have immediately available.

Which of the following, if true, most strongly supports the psychologists' interpretation of the studies?

(A) The effect noted in the studies is not limited to patrons who have credit cards.

(B) Patrons who are under financial pressure from their credit-card obligations tend to tip less when presented with a restaurant bill on a tray with a credit-card logo than when the tray has no logo.

(C) In virtually all of the cases in the studies, the patrons who paid bills in cash did not possess credit cards.

(D) In general, restaurant patrons who pay their bills in cash leave larger tips than do those who pay by credit card.

(E) The percentage of restaurant bills paid with a given brand .of credit card increases when that credit card's logo is displayed on the tray with which the bill is presented.

最后答案选的是B，疑惑是谁能给我解释下这个逻辑链条是啥？还有B选项看不懂解释，它也是我直接忽略的选项。我选的D
粗体字是尤为不懂的，粗体字和studies研究的不是一种人吧？既然不是一种人怎么推出B了？
而且如果支持这个hypothesis看到Logo愿意支付更多的话，B项钱少的人儿也应该盲从啊，他们为嘛不支持了呢？
谢谢回复的人儿们，谢谢！

tucaozhuanyong

这个题的假设是，如果一个人看到了信用卡的logo，那么他会想起他的支付能力超过自己的实际自己资金拥有量，所以，就会多支付小费。
但是，如果任何人看到了信用卡的logo，通过信用卡能够增加自己的资金拥有量的人，通过信用卡不能够增加自己资金拥有量的人，都会多支付小费，假设就不成立了。
这个需要一个背景知识，如果一个人的财务状况差，那么他的信用卡很可能就借不到钱了，也就是说当他们看到信用卡logo的时候，得到的提示，不是他们可以通过信用卡支付比他们实际拥有的金额更多的资金，而是他们只能够通过信用卡得到和自己实际拥有的金额一样多的金额。因此，这样的人看到信用卡logo的时候，他们并不会支付更多的小费。