Respuesta :
Answer: D of the above
Explanation: I am assuming this is for a gizmo because I had this same question. The correct answer for me was D.
New proteins affect the fitness of children as They increase fitness (option b )
Proteins
Protein are biochemical molecular substances made up of chains of Amino acids and are important part of a healthy diet. They are made up of chemical 'building blocks' called amino acids. Our body uses amino acids to build and repair muscles and bones and to make hormones and enzymes. They can also be used as an energy source
Read more about proteins:
https://brainly.com/question/10058019
