This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology metabolism, Subject name: Physiology
Aromatase produces estrogen from - 
Select and explain. 
A. Progesterone, B. Cortisol, C. Aldosterone, D. Androgen
D: Androgen
Answer: D: Androgen 
Explanation: Ans. is 'd' i.e.. Androgen o Aromatase conversts androgens into estrogen in peripheral tissues.