This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Pathology
[{'content': 'Most common cause of chronic pancreatitis is:- \nSelect and explain. \nA. Alcohol, B. Gall stones, C. Trauma, D. Smoking', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common cause of chronic pancreatitis is alcohol', 'role': 'assistant'}]