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
Important components of collagen synthesis, wound strength and contraction include all of the following EXCEPT 
Select and explain. 
A. Fibroblasts, B. Myofibroblasts, C. Vitamin C, D. Vitamin D
D: Vitamin D
Answer: D: Vitamin D 
Explanation: Nutritional  status  has  profound  effects  on  repair; protein  malnutrition  and  vitamin  C  deficiency,  for example, inhibit collagen synthesis and retard healing.
Robins 10 th ed page no 93