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 postmenopausal diabetic woman presents with bleeding per vaginum. The most likely diagnosis is : 
Select and explain. 
A. Carcinoma vulva, B. Carcinoma cervix, C. Carcinoma endometrium, D. Carcinoma ovary
C: Carcinoma endometrium
Answer: C: Carcinoma endometrium 
Explanation: Carcinoma endometrium