Justine takes an iron pill, a calcium supplement, and a Vitamin D supplement every morning. These are each parts of a good nutrition plan promoting different aspects of Justine’s health.Which aspects are promoted by these specific vitamins and minerals?

Iron helps the body make hemoglobin, which carries oxygen in the blood and supports healthy blood flow. Calcium and Vitamin D work together to build and maintain strong bones. Vision and nerve function are not the main aspects promoted by this combination, so the best choice is A, good blood flow and healthy bones.

AI-written and checked against the verified answer.