Correct Response: A. Oxytocin is a hormone made in the hypothalamus and stored in the posterior pituitary gland. This hormone is responsible for inducing contractions during labor. Follicle stimulating hormone is responsible for stimulating the growth of follicles and the maturation of oocytes (B). Estrogen and progesterone stimulate the development of the endometrium and maintain it in preparation for pregnancy (D). If the oocyte is not fertilized, the levels of estrogen and progesterone drop off, which induces the disintegration of the uterine lining (C).
