What Occurs When a Woman Takes the Preven Emergency Contraceptive

What occurs when a woman takes the Preven Emergency Contraceptive Kit?

A) The progesterone pills upset the uterine cycle and prevent the embryo from implanting.
B) The estrogen pills upset the uterine cycle and prevent the embryo from implanting.
C) The progesterone pills upset the uterine cycle and prevent the sperm from fertilizing the egg.
D) The progesterone pills upset the uterine cycle and prevent the egg from being ovulated from the ovary.
E) The polyurethane lining prevents the sperm from reaching the egg and fertilizing it.