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
Chondrocalcinosis is seen in - 
Select and explain. 
A. Ochronosis, B. Hypoparathyroidism, C. Rickets, D. Hypervitaminosis D
A: Ochronosis
Answer: A: Ochronosis 
Explanation: Alkaptonuria (ochronosis) can cause chondrocalcinosis.