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
[{'content': 'In carcinoma prostate with matastasis which is raised \nSelect and explain. \nA. ESR, B. Alkaline phosphatase, C. Acid phosphatase, D. Bilirubin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]