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: Pathology
[{'content': 'Which among the following is essential for wound healing: \nSelect and explain. \nA. Vitamin A, B. Vitamin D, C. Vitamin C, D. Carbohydrate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Deficiency of vitamin C causes reduced cross-linking of tropocollagen to collagen.', 'role': 'assistant'}]