This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Giant Cell Tumor (GCT) or Osteoclastoma, Subject name: Orthopaedics
[{'content': "Epiphysis involved in which bone tumor - \nSelect and explain. \nA. Osteosarcoma, B. Multiple myeloma, C. Giant cell tumor, D. Ewing's sarcoma", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Giant cell tumor o Epiphyseal tumors are : Chondroblastoma. Giant cell tumor (osteoclastoma), Clear cell chondrosaroma.", 'role': 'assistant'}]