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': 'What is the cause of nephrocalcinosis in granulomatous disease? \nSelect and explain. \nA. Increased absorption, B. Increased conversion to 1,25 OH, C. Dystrophic calcification, D. Mutation in calcium sensing receptor', 'role': 'user'}, {'content': 'Answer: B \nExplanation: . Increased conversion to 1,25 OH', 'role': 'assistant'}]