Answer;
-Fortification;
Explanation;
-Food fortification is the process of adding micronutrients such as essential trace elements and vitamins to a food item. It is done to improve the nutritive values of the food. These nutrients may or may not have been originally present in the food before processing.
-Fortified foods can help correct deficiencies, but they can overdo one nutrient, which may counteract the benefit. Multivitamin-multimineral supplements can't replace food; nothing can.
A. serve a different function
Because they contain CARBON