This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ohopedics Oncology, Subject name: Orthopaedics
[{'content': 'Osteosarcoma originates from which type of cells \nSelect and explain. \nA. Osteocytes, B. Osteoblasts, C. Chondrocytes, D. Osteoclast', 'role': 'user'}, {'content': "Answer: B \nExplanation: BONE TUMOURS CELL OF ORIGIN BENIGN MALIGNANT OSTEOBLAST Osteoma OSTREOSARCOMA CHONDROBLAST CHONDROMA CHONDROSARCOMA CHONDROBLASTOMA OSTEOCHONDROMA OSTEOCLAST GIANT CELL TUMOR MALIGNANT GIANT CELL TUMOUR U M C (MEDULLA) ESINOPHILIC GRANULOMA MYELOMA ANGIOSARCOMA (EWING'S) LYMPHOMA (RCS) FIBROBLAST NON-OSSIFYING FIBROMA FIBROSARCOMA", 'role': 'assistant'}]