There Is a Three-Day Window During Which a Woman Is

There is a three-day window during which a woman is most likely to become pregnant. It extends from two days before ovulation to one day after and occurs because

A) sperm are viable for up to three days in the female reproductive tract.
B) a secondary oocyte is viable for about 24 hours after ovulation and sperm are viable for about 48 hours in the female reproductive tract.
C) it takes three days for the sperm to reach the secondary oocyte.
D) it takes three days for the secondary oocyte to reach the uterus.