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': 'Amyloid deposition is seen in: March 2013 \nSelect and explain. \nA. Papillary carcinoma thyroid, B. Follicular carcinoma thyroid, C. Medullary carcinoma thyroid, D. Anaplastic carcinoma thyroid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Medullary carcinoma thyroid', 'role': 'assistant'}]