This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Budd chiari syndrome & Pancreatitis, Subject name: Medicine
[{'content': 'Causes of acute pancreatitis are A/E? \nSelect and explain. \nA. Hypocalcemia, B. Valproic acid therapy, C. Biliary tract disease, D. Blunt trauma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Causes of Acute Pancreatitis: Alcohol Gallstones & Biliary tract disease Hyperiglyceridemia, Hypercalcemia Drugs (azathioprine, 6-mercaptopurine, valproic acid, anti-HIV medications) ERCP, Postoperative, Blunt abdominal trauma Cystic fibrosis, Pancreas divisum, Periampullary diveiculum Infections (mumps, coxsackie virus, CMV, echovirus, parasites) Autoimmune', 'role': 'assistant'}]