Regular intake of fresh fruits and vegetables is recommended in the die since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?

• A. They activate the enzyme necessary for vitamin synthesis in the body and help prevent vitamin deficiency
• B. They prevent excessive oxidation of carbohydrates, fats and protein in the body and help avoid unnecessary wastage of energy
• C. They neutralize the free radical produced in the body during metabolism
• D. They activate certain genes in the cells of the body and help delay the ageing process