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
The risk of endometrial cancer is highest with the following histological pattern of endometrial hyperplasia: 
Select and explain. 
A. Simple hyperplasia without atypia, B. Simple hyperplasia with atypia, C. Complex hyperplasia without atypia, D. Complex hyperplasia with atypia
D: Complex hyperplasia with atypia
Answer: D: Complex hyperplasia with atypia 
Explanation: None