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': 'Histological appearance of which uterine cancer resembles epithelial ovarian cancer \nSelect and explain. \nA. Clear cell carcinoma, B. Uterine papillary serous carcinoma, C. Endometroid adenocarcinoma, D. Mucinous carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Uterine papillary serous carcinoma  appears histologically similar to epithelial ovarian cancer.', 'role': 'assistant'}]