While the follicle is developing, a positive-feedback loop occurs in which __________ stimulates the follicle, which increases the secretion of __________, which stimulates GnRH secretion.
A) LH, estrogen
B) FSH, estrogen
C) LH, progesterone
D) FSH, progesterone
E) FSH, LH
Answer: B) FSH, estrogen
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