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
All are anti-oxidants except 
Select and explain. 
A. Vit A, B. Vit C, C. Vit D, D. Vit E
C: Vit D
Answer: C: Vit D 
Explanation: Antioxidant vitamins are vitamin C, carotenes and vitamin A, and vitamin E.