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
[{'content': 'The risk of endometrial cancer is highest with the following histological pattern of endometrial hyperplasia : \nSelect and explain. \nA. Simple hyperplasia without atypia, B. Simple hyperplasia with atypia, C. Complex hyperplasia without atypia, D. Complex hyperplasia with atypia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Risk of endometrial cancer Simple hyperplasia without atypia: 1% Complex hyperplasia without atypia: 3% Simple hyperplasia with atypia: 8% Complex hyperplasia with atypia: 29%', 'role': 'assistant'}]