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': 'Which of the following is absolutely essential for wound healing? \nSelect and explain. \nA. Vitamin D, B. Carbohydrates, C. Vitamin C, D. Vitamin E', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Fibroblasts require vitamin C to produce collagen. There is an increase in the tensile strength of the wound due to increased collagen, which is at first deposited in a random fashion and consists of type III collagen. The remodelling phase is characterised by maturation of collagen (type I replacing type III until a ratio of 4:1 is achieved). There is a realignment of collagen fibres along the lines of tension Bailey and love 26th edition pg :25', 'role': 'assistant'}]