This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal infections, Subject name: Anatomy
[{'content': 'Variant of Giant cell tumor is \nSelect and explain. \nA. Ossifying fibroma, B. Non Ossifying fivroma, C. Osteosarcoma, D. Chondtoblastoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: GCT is adult counterpa of chondroblastoma. Chondroblastoma is an epiphyseal tumor which occurs in 2nd decade while GCT is an epiphyseal tumor which occurs in adults Refer https ://emedicine. Medscape.com/aicle/125449-overview', 'role': 'assistant'}]