If the protein you eat has all the 9 types of amino acids you need to get from food, it is called a "complete protein." Great sources of complete proteins are: Fish. Poultry (chicken, duck, or turkey) Eggs
The best sources of essential amino acids are animal proteins such as meat, eggs, and poultry. However, some plant foods, such as the soy products edamame and tofu, contain all nine essential amino acids. This means they are “complete” sources of protein ( 2 , 3 ).
b is the answer