Question

1. what causes the cervix to dilate?

ovulation
gestation
menstruation
contractions

Explanation:

During labor, uterine contractions cause the cervix to dilate to allow the baby to pass through the birth - canal. Ovulation is the release of an egg from the ovary, gestation is the period of pregnancy, and menstruation is the shedding of the uterine lining.

Answer:

D. contractions