This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
[{'content': 'Which of the following types of pancreatitis has the best prognosis? \nSelect and explain. \nA. Alcoholic pancreatitis, B. Gallstones induced pancreatitis, C. Post operative pancreatitis, D. Idiopathic pancreatitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The prognosis is best in patients where pancreatitis is caused by a remediable cause such as cholelithiasis. Eradication of gallstones prevents fuher attacks of pancreatitis.', 'role': 'assistant'}]