请教狒狒逻辑59题,我觉得参考答案错误.想得头都晕了~

59. Top college graduates are having more difficulty demonstrating their superiority to prospective employers than did the top students of twenty years ago when an honors degree was distinction enough. Today’s employers are less impressed with the honors degree. Twenty years ago no more than 10 percent of a given class graduated with honors. Today, however, because of grade inflation, the honors degree goes to more than 50 percent of a graduating class. Therefore, to restore confidence in the degrees they award, colleges must take steps to control grade inflation.

Which one of the following is an assumption that, if true, would support the conclusion in the passage?

A.        Today’s students are not higher achievers than the students of twenty years ago.

B.        Awarding too many honors degrees causes colleges to inflate grades.

C.        Today’s employers rely on honors ranking in making their hiring decisions.

D.       It is not easy for students with low grades to obtain jobs.

E.        Colleges must make employers aware of the criteria used to determine who receives an honor degree.

The best answer is A. 如果现在的优秀学生数量比20年前多，那么授予更多的honor degree就很正常了，也许除了荣誉学位，学生应该用别的方面来证明自己。所以只有当现在的学生素质不值得被授予象20年前那样的荣誉学位的时候，整个论证才有道理。

这是原结论.

我的理解是选C

因为先是10%，然后是50%，明显50%的rank没有以前的10%含金量高了，所以manager value的是ranking.