Answer:
The correct answer is 4. prevent deficiency diseases.
Explanation:
Vitamins are important in the body and it helps in boosting our immune system, helping our wounds to heal fast. They are required in a small amount in the body for maintaining normal metabolism of the body.
Vitamins helps in preventing deficiency disease like vitamin deficiency anemia. Vitamin D deficiency can cause rickets, vitamin C deficiency can cause scurvy, deficiency of vitamin A can cause vision loss.
Therefore a proper balanced diet should be taken which has all essential vitamins to prevent us from deficiency diseases.