This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
Following are precursors of endometrial carcinoma except : 
Select and explain. 
A. Atypical adenomatous hyperplasia, B. Atrophic endometrium, C. Adenocarcinoma in situ, D. Cystic hyperplasia
B: Atrophic endometrium
Answer: B: Atrophic endometrium 
Explanation: Endometrial atrophy is the most common cause of post menopausal bleeding Reference :Textbook of Gynaecology; Sheila balakrishnan; 2nd edition; Pg no:245