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
[{'content': 'Which of following prostaglandin induces aromatase activity in endometrial stromal cells \nSelect and explain. \nA. PGE1, B. PGF2 α, C. PGE2, D. PGD2', 'role': 'user'}, {'content': 'Answer: C \nExplanation: PGE2 is most potent inducer of aromatase activity in endometrial stromal cells.', 'role': 'assistant'}]