This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
The corpus luteum secretes : 
Select and explain. 
A. Oestrogens, B. Progesterone, C. Both, D. None
C: Both
Answer: C: Both 
Explanation: Both Hormones secreted by corpus Luteum Progesteronedeg (Predominantly) Estrogendeg Inhibindeg Relaxin Progesterone along with estrogen from corpus luteum maintain the growth of the feilised ovum. This is essential till the luteal function is taken over by the placenta (called as Luteal-placental shift).