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': 'Familial amyloidotic polyneuropathy is due to amyloidosis of nerves caused by deposition of : \nSelect and explain. \nA. Amyloid associated protein, B. Mutant Calcitonin., C. Mutant transthyretin, D. Normal transthyretin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: . Mutant transthyretin', 'role': 'assistant'}]