Triphasic Combination Pills Mimic the Woman's Normal Menstrual Cycle by Providing

Triphasic combination pills mimic the woman's normal menstrual cycle by providing varying amounts of estrogens and progestins throughout the cycle. The main reason for this is to

A) make the pill more effective.
B) decrease the pill's side effects.
C) reduce cost.
D) allow women to skip their menstrual period entirely.
E) reduce the number of pills taken each month.