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': 'Which of the following statement regarding pancreatitis is true ? \nSelect and explain. \nA. Acute pancreatitis has reversible changes, B. Alcohol causes only acute pancreatitis, C. Chronic pancreatitis shows no signs of inflammation, D. Acute pancreatitis affects mainly younger population', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Chronic pancreatitis is a disease process characterized by irreversible damage to the pancreas as distinct from the reversible changes noted in acute pancreatitis. The condition is best defined by the presence of histologic abnormalities, including chronic inflammation, fibrosis, and progressive destruction of both exocrine and eventually endocrine tissue. Alcohol is implicated in both acute and chronic pancreatitis and both can occur in young adults.', 'role': 'assistant'}]