3. What causes menstruation?
A. breaking down of lining of ovary
B. breaking down of lining cervix
C. breaking down of fallopian tube
D, breaking down of the lining of uterus

4. How many days does it take to complete a menstrual cycle?
A. 3 days
B. 7 days
C. 28 days
D. 38 days.

5. The term used to describe excessive volume of menstruation is __
A. dysmenorrhea
B. Menorrhagia
C. Oligomenorrhea
D. Polymenorrhea

6. In this stage, hormones act on the uterus for the preparation for
pregnancy
A. Luteal Stage
B.follicular stage
C.menopause
D.ovulation

guys ineed answer plsss​