Baked beans, hamburger, and milk-rationale: beans, hamburger, and milk are all excellent sources of protein. The spaghetti-broccoli-tea choice is high in carbohydrates. The bouillon-spinach-soda choice provides liquid and sodium as well as some iron, vitamins, and carbohydrates. Chicken provides protein but the chicken-spinach-soda combination provides less protein than the beans-hamburger.