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
All of the following are known risk factors for development of endometrial carcinoma except: 
Select and explain. 
A. Obesity, B. Family history, C. Use of hormone replacement therapy, D. Early menopause
D: Early menopause
Answer: D: Early menopause 
Explanation: None