Answer:
I believe it would be C.
Explanation:
That is the whole reason of that there's blood during menstruation, the uterus' walls will expel the uterine lining for several days during each month.
Which, hence- Causes women and teens to have a period each month.
Answer:
the third option
Explanation:
menstruation is the act of the body flushing the unused tissue in order to create fresh tissue. This happens after an egg is expelled and does not become fertilized.