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: Orthopaedics
[{'content': 'Chondrocalcinosis is seen in - \nSelect and explain. \nA. Ochronosis, B. Hypoparathyroidism, C. Rickets, D. Hypervitaminosis D', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Alkaptonuria (ochronosis) can cause chondrocalcinosis.', 'role': 'assistant'}]