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': 'Chain of lakes appearance in ERCP is seen is \nSelect and explain. \nA. Acute Pancreatitis, B. Chronic Pancreatitis, C. Carcinoma Pancreas, D. Ductal Adenoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Chronic Pancreatitis', 'role': 'assistant'}]