During pregnancy, estrogen and progesterone from the placenta
A. inhibit release of corticotropin-releasing hormone and thereby prevent excessive stress responses.
B. stimulate GnRH secretion and thereby inhibit overgrowth of the uterus.
C. stimulate FSH and LH secretion and thereby stimulate ovarian follicle development.
D. inhibit FSH and LH secretion and thereby arrest ovarian follicle development.
Answer: D
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