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 following prostaglandin induces aromatase activity in endometrial stromal cells 
Select and explain. 
A. PGE1, B. PGF2 α, C. PGE2, D. PGD2
C: PGE2
Answer: C: PGE2 
Explanation: PGE2 is most potent inducer of aromatase activity in endometrial stromal cells.