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: Pathology
Osteoblastic metastasis is seen in - 
Select and explain. 
A. Lung Ca, B. Prostate Ca, C. Breast Ca, D. Hepatocellular Ca
B: Prostate Ca
Answer: B: Prostate Ca 
Explanation: . Prostate Ca