Which combination provides an example of protein complementation?

Peanut butter sandwich combination provides an example of protein complementation. Whenever legumes like beans, lentils, or peanuts are combined with grains like corn, wheat, or rice, a complete protein is introduced. Peanut butter on whole wheat is a snack that is pretty high in calories and provides a huge amount of all the essential amino acids and lots of healthy fats to boot

the answer is c

explanation:

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.