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': 'Persistent organ failure in the setting of acute pancreatitis is defined, when the organ failure lasts for more than: \nSelect and explain. \nA. 12 hours, B. 24 hours, C. 48 hours, D. 72 hours', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The determinant of the severity of acute pancreatitis during the early phase is the presence and duration of organ failure, if organ failure persists for >48 h. Ref: Gut 2013;62:102-111. doi:10.1136/gutjnl-2012-302779.', 'role': 'assistant'}]