This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Wound Healing, Tissue Repair and Scar, Subject name: Surgery
[{'content': 'Tensile strength of wound becomes normal after:- \nSelect and explain. \nA. 6 weeks, B. Never, C. 4 months, D. 6 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: At the end of the first week, wound strength is approx. 10% of that unwounded skin. Strength increases rapidly over the next 4 weeks The rate of increase then slows at approximately the third month after the original incision,reaches a plateau at about 70-80 % of the tensile strength of the unwounded skin, a condition that may persist for life. The tensile strength of wound never equals that of unwounded skin', 'role': 'assistant'}]