This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Pegvisomant is approved for the treatment of? \nSelect and explain. \nA. Parkinsonism, B. Hyperprolactinemia, C. Amenorrhoea, D. Acromegaly', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Pegvisomant is a mutant growth hormone. It is used for the treatment of acromegaly caused by small pituitary adenoma. Ref: Sharma and Sharma 2nd e/pg 547', 'role': 'assistant'}]