GWD5-Q31牛牛帮着解答一下啊~~

GWD5-Q31:

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 credit-card logo.  Consumer psychologists hypothesize that simply seeing a credit-card logo makes many credit-card 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 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 given brand of credit card increases when that credit card’s logo is displayed on the tray with which the bill is prepared.

敢问大家，为什么选B呢，我怎么觉得题干的第一句话和第二句话意思相反呢？这道题目是不是Og上有啊？

题目意思是：用现金付账的人给的小费，比刷卡付账的人给的消费高。专家分析原因：用信用卡付账时因是刷卡还不是现金，所以容易多消费。两者的联系不再给消费的多少上，而在于对于刷卡消费的多少上。

B：因为没钱了，所以刷卡时也很谨慎。正好支持了文中我有钱时，消费就多。 tend to 表示有这个趋势，即是文中两者的联系点：有钱时，刷卡消费多了，小费就高了。