Question

which vitamin helps repair dna?
vitamin a
vitamin c
vitamin e
vitamin k

Explanation:

Vitamin C is an antioxidant that helps in DNA repair by protecting cells from damage and also plays a role in the synthesis of collagen which is important for cell structure and repair processes. Vitamin A is mainly for vision, immune function etc. Vitamin E is an antioxidant but its role in DNA repair is not as prominent as Vitamin C. Vitamin K is for blood - clotting.

Answer:

Vitamin C