A nurse is reinforcing teaching about nutritional needs of preschoolers with a group of parents. Which of the following foods should the nurse recommend as a source of complete protein?

A. Pinto beans: Pinto beans are a good source of protein, but they are not considered a complete protein. They lack some of the essential amino acids, although they can be paired with other foods (like rice) to form a complete protein. B. Peanut butter: Peanut butter is a good source of protein, but like pinto beans, it is not a complete protein. It lacks some essential amino acids, and while it can be part of a balanced diet, it does not provide all the necessary amino acids on its own. C. Eggs: Eggs are an excellent source of complete protein because they contain all nine essential amino acids that the body cannot produce on its own. They are considered one of the best sources of high-quality, complete protein. D. Broccoli: While broccoli contains some protein, it is not a complete protein. It provides some essential amino acids, but not all nine, so it does not qualify as a complete protein source on its own.