This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Arthritis, Subject name: Orthopaedics
[{'content': "Bouchard's nodes are seen in - \nSelect and explain. \nA. Proximal IP joints, B. Distal IP joints, C. Stemo-clavicular joints, D. Knee joint", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Proximal IP joints In osteoarthritis of hand : Distal interphalangeal joint - Heberden's node Proximal interphalangeal joint - Bouchard's node", 'role': 'assistant'}]