<prompt> Osteosarcoma originates from which type of cellsOsteocytesOsteoblastsChondrocytesOsteoclast  <response>: 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 EWINGS LYMPHOMA RCS FIBROBLAST NON-OSSIFYING FIBROMA FIBROSARCOMA 