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': 'Tensile strength of wound become normal after \nSelect and explain. \nA. 6 weeks, B. 4 weeks, C. 6 weeks, D. Never', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Tensile strength of wound increase as days goes on. Maximum tensile strength is 60 - 80% of normal, but never becomes normal.', 'role': 'assistant'}]