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
[{'content': 'Commonest malignancy of the body of the uterus is : \nSelect and explain. \nA. Adenoacanthoma, B. Squamous cell carcinoma, C. Sarcoma, D. Adenocarcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Adenocarcinoma', 'role': 'assistant'}]