This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'The tensile strength of the wound stas and increases after ? \nSelect and explain. \nA. Immediately after suturing, B. 3 to 4 weeks, C. 10-12weeks, D. after 6 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Wounds do not begin to gain tensile strength from collagen immediately after the suturing . Wound stas achieving tensile strength around 20 % by 3 weeks, and increases by around 80 % by 12 weeks. The maximum scar strength is 80% of that of unwounded skin. Scar tissue continues to remodel for at least 6 - 12 months after an injury. Ref: Surgery of Bailey and love,26th edition.', 'role': 'assistant'}]