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': 'Excessive accumulation of which hormone protein causes organ dysfunction - \nSelect and explain. \nA. Growth hormone, B. Prolactin, C. Calcitonin, D. Parathormone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. CalcitoninA. cal amyloid protein, derived from calcitonin, causes amyloidosis in medullary carcinoma of thyroid.', 'role': 'assistant'}]