This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal infections, Subject name: Anatomy
[{'content': 'Most common tumor producing osteoclastic metastasis \nSelect and explain. \nA. Kidney, B. Lung, C. Prostrate, D. Thyroid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Osteoblastic lesions are uncommon, they are usually are seen in prostatic carcinoma. However some other tumors may also produce Osteoblastic secondaries Refer ohopedic nuclear medicine 1st /e p 154', 'role': 'assistant'}]