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': "Cullen's sign is seen in: March 2004 \nSelect and explain. \nA. Acute cholecystitis, B. Acute hepatitis, C. Acute pancreatitis, D. Blunt injury abdomen", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Acute pancreatitis', 'role': 'assistant'}]