GWD上一道实在想不通的题……

Akiii

不懂这里的were successful in their contacts到底代表什么？

Smithtown University's fund-raisers succeeded in getting donations from 80 percent of the potential donors they contacted. This success rate, exceptionally high for university fund-raisers, does not indicate that they were doing a good job. On the contrary, since the people most likely to donate are those who have donated in the past, good fund-raisers constantly try less-likely prospects in an effort to expand the donor base. The high success rate shows insufficient canvassing effort.

Which of the following, if true, provides more support for the argument?
ASmithtown University's fund-raisers were successful in their contacts with potential donors who had never given before about as frequently as were fund-raisers for other universities in their contacts with such people. （key）
BThis year the average size of the donations to Smithtown University from new donors when the university's fund-raisers had contacted was larger than the average size of donations from donors who had given to the university before.
CThis year most of the donations that came to Smithtown University from people who had previously donated to it were made without the university's fund-raisers having made any contact with the donors.
DThe majority of the donations that fund-raisers succeeded in getting for Smithtown University this year were from donors who had never given to the university before.
EMore than half of the money raised by Smithtown University's fund-raisers came from donors who had never previously donated to the university.

看过很多人的解释说A能证明未捐钱的人少，S学校的钱都是老金主捐的。
但是A选项说的明明说的是contact啊，我理解是S【联系】【从未捐过的人】上和其他学校一样成功。也就是S联系了100次从未捐赠者，别的学校也联系过了100次从未捐赠的人，as frequently as 表示联系的次数一样啊。
结论是S的总捐赠率高，但不能说它成功,因为总捐赠里面可能是老金主。
但是A说的【成功联系率一样】啊，并没有说【从未捐赠的人的捐赠率一样】。所以S的80%捐赠率里面为什么不能都是从未捐赠过的人捐赠的呢？凭什么认为S的都是老金主捐赠的，它做的不好呢？

kluivert

A说S学校的fund-raisers和其他学校的fund-raisers 成功联系从未捐助过的潜在donors的频率是一样的
这不正说明了：面对从未捐助的潜在donors上，S学校的fund-raisers 并不比其他学校的fund-raisers更成功啊 。但S的80%的成功率不就说明了是老的donors的贡献，才达到 succeeded in getting donations from 80 percent

这和 good fund-raisers constantly try less-likely prospects in an effort to expand the donor base. The high success rate shows insufficient canvassing effort很一致啊

S的fund-raisers 并不比其他的学校的fund-raisers 更努力。。更成功