This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification of Bone Tumors, Subject name: Orthopaedics
[{'content': 'Most common tumor in bones of hand: \nSelect and explain. \nA. Exostosis, B. Giant cell tumor, C. Enchondroma, D. Synovial sarcoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (c) EnchondromaEnchondromas are most common type of hand bone tumor.- Phalanges of hand are involved most commonly and the proximal phalanx is the most common site.', 'role': 'assistant'}]