This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Joint disorders, Subject name: Orthopaedics
[{'content': 'Joint not involved in osteoahritis is \nSelect and explain. \nA. DISTAL INTERPHALYNGEAL JOINTS, B. KNEE JOINT, C. METACARPOPHALYNGEAL JOINT, D. PROXIMAL INTERPHALYNGEAL JOINT', 'role': 'user'}, {'content': 'Answer: C \nExplanation: MCP joints are rarelyinvolved in osteoahritis ref : maheswari 9th ed', 'role': 'assistant'}]