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: Radiology
[{'content': '"Osteosclerotic" bone metastasis is found most commonly in which carcinoma: \nSelect and explain. \nA. Kidney, B. Thyroid, C. Lung, D. Prostate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Prostate', 'role': 'assistant'}]