A Sharp Drop in Which of the Following Hormones Causes

Question

A sharp drop in which of the following hormones causes menstruation?
A) estrogen
B) progesterone
C) follicle-stimulating hormone
D) both A and B

Accepted Answer

Menstruation is triggered by a sharp drop in both estrogen and progesterone levels. These hormones are produced by the ovaries during the menstrual cycle and are responsible for preparing the uterus for pregnancy. If pregnancy does not occur, the levels of estrogen and progesterone drop, causing the lining of the uterus to shed, resulting in menstruation.