peak of progesterone secretion from corpus luteum occur :: (A) At ovulation, (B) Before ovulation, (C) 3 days after ovulation, (D) 8-9 days after ovulation
Answer is D. LH initiates and maintains the corpus luteum from which both estrogen and progesterone are secretedProgesterone attains its highest peak 8 days after LH SurgeProgesterone acts to suppress the follicular growthThe lifespan of corpus luteum is about 12-14 daysRef: D.C. Dutta&;s Textbook of Gynaecology, 6th edition, page no: 93