The correct answer is b. -oma, oste/o-, sarc/o-.
Tumours of mesenchymal origin including bones and connective tissue are called sarcoma.
Bone tumors can be malignant and benign. Examples of benign include: osteoma, osteoid osteoma, osteochondroma, osteoblastoma, enchondroma. Examples of malignant include: osteosarcoma, chondrosarcoma, fibrosarcoma.
