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': 'For how long can a patient survive in anhepatic phase given full supportive treatment? \nSelect and explain. \nA. 1-2 hour, B. 24-48 hours, C. 1 week, D. 2-4 weeks', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]