Although Early Formulations of the Combination Contraceptive Pill Had Many

Although early formulations of the combination contraceptive pill had many negative health effects, including increased risk of breast cancer, many of these risks have been greatly reduced or eliminated by

A) limiting oral contraceptive use to only young, healthy women.
B) adding androgens to current formulations.
C) adding estrogen receptor blockers to current formulations.
D) lowering the amount of progesterone in current formulations.
E) lowering the amount of estrogen in current formulations.