What Does Leong Mean When She Says That Women's Sports

What does Leong mean when she says that women's sports are "a self-perpetuating phenomenon?"

A) Once we establish sex-segregated events, women become more excited about playing those than co-ed events
B) Once we allow women to play sports, we should expect that they will want to play in whatever capacity that they can
C) When we put sex-segregated events on television, viewers are going to want to watch sex-segregated events instead of co-ed ones
D) Once we establish sex-segregated events, there's no opportunity for women to prove that they could compete with men
E) When we lower expectations surrounding women's athletic ability, it becomes difficult for them to ever be better at sports than men