老prep sc 39 求解~

vannig

39.The Sports Medicine Programs of the Olympic Training Center, a complex where final tryouts are held for athletes representing the United States in the Olympics, is geared toward enhancing athletes' performance and toward their preparation for international competition.

(A) is geared toward enhancing athletes' performance and toward their preparation

(B) is geared to enhance the performance of athletes and to prepare them

(C) are geared to enhance athletes' performance and their preparation

(D) are geared toward the enhancement of athletes' performance and toward preparing them

(E) are geared toward enhancing the performance of athletes and preparing them

答案是E
做的时候我很疑惑E的them指代的是什么，如果指的是athletes，performance of athletes不是所有格吗？
那them应该不能指代athletes呀

麻烦大家帮解答一下。

塔罗牌

这题就是考enhancing和preparing是平行关系