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: Medicine
[{'content': 'Which one of the following types of pancreatitis has the best prognosis - \nSelect and explain. \nA. Gall stone pancreatitis, B. Alcoholic pancreatitis, C. Idiopathic pancreatitis, D. Traumatic pancreatitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]