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 internation competition
A) is geared toward enhancing athletes' performance and toward their preparation for internation competition
B) is geared to enhance the performance of athletes and to prepare them
C) are geared to enhance athlete's performance and their preparation
D) are geared toward the enhancement of athletes' peformance and toward preparing them
E) are geared toward enhancing the performance of athletes and preparing them
I originally chose A. Can someone explain why the correct tense is plural. The modifier states that it is a complex (singular), which threw me off.