This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Secondary Amenorrhea, Subject name: Gynaecology & Obstetrics
Ashermann syndrome is secondary to - 
Select and explain. 
A. Tuberculosis, B. Endometrial carcinoma, C. Endometriosis, D. Submucosal fibroid
A: Tuberculosis
Answer: A: Tuberculosis 
Explanation: Ans. is 'a' i.e., Tuberculosis o Ashermann syndrome is secondary io endometrial tuberculosis when patient develops adhesions and secondary amenorrhoea.