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': 'All are true about osteoarthritis, except \nSelect and explain. \nA. Glucosamines are beneficial, B. Loose bodies in the ankle joint, C. Quadriceps atrophy, D. MCP is spared', 'role': 'user'}, {'content': 'Answer: B \nExplanation: OA does not involve ankle joint.\nLoose bodies are seen in OA.', 'role': 'assistant'}]