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
Withdrawal bleeding with progesterone seen in otherwise amenorrhoeic woman due to : 
Select and explain. 
A. Hypogonadotrophic hypogonadism, B. Anovulation, C. Ovarian failure, D. TB endometritis
B: Anovulation
Answer: B: Anovulation 
Explanation: Ans. is b i.e. Anovulation