Complete Question:
Which of the following hormones is released by the anterior pituitary as a part of that positive feedback loop between it and the ovary?
A) progesterone
B) luteinizing hormone
C) gonadotropin releasing hormone
D) estrogen
E) gonadotropin
Answer: luteinizing hormone (Option B)
Explanation: Luteinizing hormone (LH) is a gonadotropic hormone secreted by gonadotropic cells in the anterior pituitary gland. Luteinizing hormone (LH) performs series of functions when secreted. For example, LH triggers corpus leteum development (which produce progesterone for pregnancy sustainance) and ovulation in females when at acute rate.
However, low rate of luteinizing hormone (LH) establish signs of primary ovarian failure (a feedback mechanism) which translates that the ovaries have problem.