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': 'After an open injury, the optimum time for nerve suture is - \nSelect and explain. \nA. Immediately, B. Within one month, C. 1-2 month, D. When wound is free from infection', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is `d' i.e., When wound is free from infection", 'role': 'assistant'}]