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
Osteoblastic metastasis is seen – 
Select and explain. 
A. Prostate carcinoma, B. Multiple myeloma, C. Thyroid carcinoma, D. Renal carcinoma
A: Prostate carcinoma
Answer: A: Prostate carcinoma 
Explanation: None