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
A 50 year old woman nulliparous. diabetic and obese presenting with post-menopausal bleeding can be any of the following except : 
Select and explain. 
A. Carcinoma in situ of cervix, B. Carcinoma endometrium, C. DUB, D. None of the above
A: Carcinoma in situ of cervix
Answer: A: Carcinoma in situ of cervix 
Explanation: Carcinoma in situ of cervix