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: Biochemistry
Most impoant vitamin, which promotes wound healing ? 
Select and explain. 
A. Vitamin C, B. Vitamin D, C. Vitamin A, D. Niacin
A: Vitamin C
Answer: A: Vitamin C 
Explanation: Vitamin C is required for collagen synthesis.Due to its impoant role in collagen synthesis, vitamin C is required for adequate wound healing.