Final answer:
Foods that are rich in essential amino acids are labeled as both complete proteins and High-quality proteins are correct (Option C).
Step-by-step explanation:
Foods that are rich in essential amino acids are labeled as complete proteins and high-quality proteins. Complete proteins contain all nine essential amino acids, which are vital for our health. Animal-based foods like meat, fish, milk, and eggs are examples of complete proteins. In contrast, most plant-based foods, such as grains, nuts, beans, and other plants, typically have incomplete proteins, meaning they lack one or more essential amino acids.
It is important, especially for those with dietary restrictions like vegans, to consume a variety of plant-based foods or to pair incomplete proteins to ensure they get all the essential amino acids. This concept of pairing is known as complementary proteins. By doing so, people who do not consume animal products can meet their amino acid requirements for a healthy diet.
Thus, the correct option is C.