What is the amount of cataylst that remains at the end of the reaction

Teens need protein for many reasons like repairing muscles, hair and skin health, etc.
Proteins also help with building enzymes, hormones and vitamins, especially important for adolescents. Proteins are made up of amino acids, most of which your body can naturally produce, however, there are nine essential amino acids that your body cannot make, but that you can get through foods you eat.

The correct answer to this question would be c