Refer to the Figure Depicting the Average Blood Concentrations of Four

Refer to the figure depicting the average blood concentrations of four circulating hormones in 100 healthy adult women.Each hormone plays a role in regulating some aspect of the ovarian and/or uterine cycle. Based on the figure, which statement is true?

A) Curve A represents luteinizing hormone (LH) levels.
B) Curve B represents progesterone levels.
C) Curve C represents a hormone secreted from the anterior pituitary gland.
D) Curve D represents a hormone produced by the corpus luteum.
E) Curve A represents a hormone secreted by the ovary.