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: Pathology
[{'content': 'MEN syndrome is associated with increase in ? \nSelect and explain. \nA. Papillary ca of thyroid, B. Medullary, C. Follicular, D. Anaplastic', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Medullary o Medullary thyroid carcinoma is associated with MEN syndrome -4 MEN 2A and MEN 2B.", 'role': 'assistant'}]