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': 'Indication for radioterhapy in carcinoma endometrium include all except: \nSelect and explain. \nA. Pelvic node involvement, B. Deep myometrial involvement, C. Enlarged uterine cavity, D. Poor differentiation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]