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: Surgery
[{'content': 'Pasmmoma bodies are seen in following except - \nSelect and explain. \nA. Serous cystadenoma of ovary, B. Mucinous cystadenoma of ovary, C. Meningioma, D. Papillary carcinoma of thyroid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]