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
Which of these do not produce progesterone 
Select and explain. 
A. Placenta, B. Follicle, C. Endometrium, D. Adrenal cortex
C: Endometrium
Answer: C: Endometrium 
Explanation: Endometrium does not produce progesterone.