A Newly Married Couple Tells the Nurse They Would Like

A newly married couple tells the nurse they would like to wait a few years before starting a family.The statement made by the man that indicates an understanding about sexual activity and pregnancy is:

A) "My wife can't get pregnant if I withdraw before climax. "
B) "A man can secrete semen before ejaculation. "
C) "If we don't have intercourse very often, my wife won't get pregnant. "
D) "It is safe to ejaculate outside the vagina. "