This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Micronutrient Metabolism, Subject name: Biochemistry
Which of the following has antioxidant properiy- 
Select and explain. 
A. Selenium, B. Copper, C. Zinc, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'd' i.e., All o The activity of the antioxidant enzymes depends on supply of mineralsManganeseCopperZincSeleniumo Manganese, copper and zinc are required for the activity of superoxide dismutase.o Selenium is required for the activity of glutathione peroxidase.