应该是很简单的一道题,今天我好象特别笨

16.   The proportion of women among students enrolled in higher education programs has increased over the past decades. This is partly shown by the fact that in 1959, only 11 percent of the women between twenty and twenty-one were enrolled in college, while in 1981, 30 percent of the women between twenty and twenty-one were enrolled in college.

To evaluate the argument above, it would be most useful to compare 1959 and 1981 with regard to which of the following characteristics?

(A) The percentage of women between twenty and twenty-one who were not enrolled in college

(B) The percentage of women between twenty and twenty-five who graduated from college

(C) The percentage of women who, after attending college, entered highly paid professions

(D) The percentage of men between twenty and twenty-one who were enrolled in college（D）

(E) The percentage of men who graduated from high school

答案是D.可是我觉得应该知道的是男生或是女生在总录取人数中的比例,可是题目和D说的分别是录取的男\女生占这一年龄段总男/女生的比例,好象没有多少关系似的

题目只说enrooled的女生占20-21的女人总数的比例，当然不能知道女生是不是占整个学生的比例上升了没有，因为，要看男生在这个年龄段的情况怎么样，如果女生enrolled的多了，男生enrolled的更多，那女生占整个学生的比例还是下降了。

不知道说明白了没有。