逻辑大全-17-16，大家没发现有问题吗？

wudiyeah

16. The proportion of women among students enrolled in higher education programs hasincreased 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 incollege, while in 1981, 30 percent of the women between twenty and twenty-onewere enrolled in college.
Toevaluate the argument above, it would be most useful to compare 1959 and 1981with regard to which of the following characteristics?

(A) The percentage of women betweentwenty and twenty-one who were not enrolled in college
(B) The percentage of women betweentwenty and twenty-five who graduated from college
(C) The percentage of women who, afterattending college, entered highly paid professions
(D) The percentage of men between twentyand twenty-one who were enrolled in college
(E) The percentage of men who graduatedfrom high school


答案为D，可是我想了一个下午也觉得不对呢。。首先 AGE 20~21这个年龄段的男女比例又没给，不知道其绝对数的变化，光知道比例的变化，怎么推得出来Proportion increasing啊！