A progestin and an estrogen are combined in oral
contraceptive pill because:
A. The estrogen blocks the side effects of the
progestin
B. The progestin blocks the side effects of the
estrogen
C. Both synergise to suppress ovulation
D. Both synergise to produce hostile cervical
mucus
contraceptive pill because:
A. The estrogen blocks the side effects of the
progestin
B. The progestin blocks the side effects of the
estrogen
C. Both synergise to suppress ovulation
D. Both synergise to produce hostile cervical
mucus