再议GWD10-29

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?

1. Smithtown
                           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.

2. This 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.

3. This 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.

4. The 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.

5. More than half of the money raised by Smithtown
                           University’s fund-raisers came from donors who had never previously donated to the university.

看了很多人的对于A的支持，但是本人还是觉得C是正确的，我的理解可能和有点不一样，原文中说的是80 percent of the potential donors they contacted，potential donors就应该是以前没有捐过钱的。如果这样理解的话，原文就是说fund-raisers 从80%以前没捐过钱的人那里得到捐款是无效率的，因为好的fund-raisers 不太会试着去扩大捐赠者的基数。那么C说大部分捐款从不用联系就会捐钱的以前捐过钱的捐赠者那里得到钱就应该是加强了原文。

希望牛人能解决以下我的问题

原文背景前提是要有Smithtown
                University’s fund-raisers succeeded in getting donations from 80 percent of the potential donors they contacted

也就是要有contact的条件下所以C明显与文章背景条件相左

因此A选表示S. University与其它University一样的话就支持结论The high success rate shows insufficient canvassing effort.        open to discuss.......

我这里和搂主理解的不一样 try less-likely prospects  in an effort to expand the donor base

我觉得应该是试着联系可能性较小的那一部分(人)来扩大捐款者基数

Since people who are likely to donate are those who donated in the past, a good university fund raiser should spend less time on those previous donors, but more time on new prospected donors.

And since Smithtowns' univeristy fund raisers are only as successfully as fund raisers from other univiersity in regard to the potential donors who haven't donated before. The unusl 80% high overall rate only means they have plenty of previous donors, but not new ones. Thus it shows a lack of canvassing effort. (A) is correct.

The proposition is talking about donors they contacted. (c) is irrelevant.