feifei-59的解题思路, NN给解释下

我觉得A和D not+weaken后都可以，NN给解释下怎么排出D?

把原题贴出, 方便大家讨论

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.

答案是A, 我觉得D取非也可以，

D取非：很低的分数的学生工作很容易找，所以weaken结论：分数不怎么重要，没必要control grade inflation.     怎么排除D选项？

能否给出具体的解题思路呢?  还是迷惑

D是否WEAKEN结论？

d或者d取非和题目不相关，都可以直接排除，题目讨论的是高分学位贬值的问题，和低分者是否容易找工作没有关系。

死死 死抓这句话：‘Therefore, to restore confidence in the degrees they award’

可见还没有到obtain job那一步呢。