Answer:
D . It serves as a preparatory phase for a possible pregnancy
Explanation: the ovaries release an egg and the menstrual cycle occurs because its preparing for a pregnancy in case the egg gets fertilized.
See a doctor as soon as possible
U did not put any anwsers to pick from
Listen to sleeping sounds, such as ASMR or raining sounds with music. Drink lots of water and try your best to sleep, or just close your eyes and rest.
