Use the Graph Below, Which Shows Changes During the Menstrual $\mathrm{D}$

Multiple Choice

Use the graph below, which shows changes during the menstrual cycle, to answer the following Questions

-The source of the increase in concentration at point $\mathrm{D}$ is the

A) ovary
B) adrenal cortex
C) corpus luteum
D) hypothalamus
E) anterior pituitary