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
Excessive accumulation of which hormone protein causes organ dysfunction - 
Select and explain. 
A. Growth hormone, B. Prolactin, C. Calcitonin, D. Parathormone
C: Calcitonin
Answer: C: Calcitonin 
Explanation: Answer- C. CalcitoninA. cal amyloid protein, derived from calcitonin, causes amyloidosis in medullary carcinoma of thyroid.