This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Commonest site of lytic lesion, in multiple myeloma is \nSelect and explain. \nA. Veebral column, B. Femur, C. Clavicle, D. Pelvis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Veebral column) The commonest site of involvement in multiple myeloma is veebral column. Although any bone may be involved, the following order of involvement is most often seen. Veebral column (66%) > Ribs (44%) > Skull(41%)> pelvis (28%)>frinur (24%) > clavicle(10%) > scapula(10%)', 'role': 'assistant'}]