For Women,how Are STIs and Infertility Related

For women,how are STIs and infertility related?

A) STIs often lead to pelvic inflammatory disease,which may block oocyte passage or uterine implantation.
B) STIs specifically attack ovaries,thus destroying follicles.
C) STIs interfere with the hormonal cycles that create the conditions conducive to pregnancy.
D) The surgery necessary to diagnose PID permanently damages the uterine lining,thus making implantation impossible.