69. Which of the following statements about the estrus cycle is NOT correct?
(A) each cycle takes approximately 28 days to complete
(B) FSH stimulates follicle growth
(C) LH surge promotes ovulation
(D) corpus luteum secrets progesterone and estradiol to elicit a positive feedback loop to stimulate GnRH releasing from hypothalamus
(E) elderly women undergo menopause, the cessation of ovulation and menstruation

(D)corpus luteum sec...