The answer is letter A.
Different variety of food ensures a person to get the necessary daily nutrients he/she needs to perform well. Daily doses of protein, carbohydrates, vitamins and minerals and other compounds are necessary in the body to help the different organ systems to function well. A person who continuously strives to eat a balance meal will lessen the risk of obtaining infections and different diseases that are common among their counterparts. Aside from a proper diet water/fluids are an important factor in the human body and should always be included in daily food intake.