This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamins and Nutritional Deficiencies, Subject name: Social & Preventive Medicine
Anti-oxidant vitamins include all except:- 
Select and explain. 
A. Vitamin A, B. Vitamin C, C. Vitamin E, D. Vitamin K
D: Vitamin K
Answer: D: Vitamin K 
Explanation: Anti-oxidants arecompounds that inhibit oxidation. Oxidation is a chemical reaction that can produce free radicals, thereby leading to chain reactions that may damage the cells of organisms. Thus, anti-oxidants protects the cell from free radical injury. Anti-oxidant vitamins are: Vitamin A ( especially Carotene) Vitamin C Vitamin E