So-Called "Combination" Birth Control Pills Function in Contraception by

Multiple Choice

So-called "combination" birth control pills function in contraception by

A) inhibiting the release of luteinizing hormone (LH) ,follicle-stimulating hormone (FSH) ,and gonadotropin-releasing hormone (GnRH) .
B) irritating the uterine lining so as to prevent implantation.
C) causing spontaneous abortions.
D) blocking progesterone receptors so that pregnancy cannot be maintained.
E) binding to and inactivating any sperm that enter the oviduct.