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': 'Increased serum acid phosphatase is a laboratory finding of: \nSelect and explain. \nA. Osteopetrosis, B. Hyperparathyroidism, C. Fibrous dysplasia, D. Scurvy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]