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 is the most common non- alcholic cause of acute pancreatitis - \nSelect and explain. \nA. Thiazides, B. Hypercalcaemia, C. Hyperlipidaemia, D. Gall stones', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]