This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'What is the 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: the 4 hour period from the time of wound is the golden period for treatment of open wounds REF ; bailey & love 24/e p120', 'role': 'assistant'}]