This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': "Bone tumour that typically affects the epiphysis of a long bone? NOT RELATED-OHO \nSelect and explain. \nA. Osteosarcoma, B. Ewing's sarcoma, C. Chondroblastoma, D. Chondromyxoid fibroma", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Rare neoplasmTypically located in epiphysis of long boneOther epiphyseal origin tumors are:i. Osteoblastomaii. Subchondral cyst', 'role': 'assistant'}]