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': 'Golden period for treatment of open wounds is …………………….. hours \nSelect and explain. \nA. 4, B. 6, C. 12, D. 24', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]