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: Surgery
Most common tumor producing osteoblastic metastasis? 
Select and explain. 
A. Kidney, B. Lung, C. Prostate, D. Thyroid
C: Prostate
Answer: C: Prostate 
Explanation: Ans. is 'c' i.e., Prostate Osteolytic bone metastases Osteoblastic bone metastasis Mixed osteolytic-osteoblastic Renal (kidney) Thyroid Ewing's sarcoma Uterine carcinoma GIT cancers & Hepatoma Wilm's tumors Myeloma Melonoma & SCC Malignant pheochromocytoma Prostate (most common) Prostate (most common) Medullary carcinoma of thyroid Osteogenic sarcoma Neuroblastoma Medulloblastoma Breast Lung (Bronchus) Urinary bladder Pancreatic Testicular Cervical Ovarian