Proteins consist of one or more polypeptide chains. Each polypeptide chain consists of smaller sub-units or amino acids that are linked together. Amino acids serve as the building blocks of polypeptides, and polypeptides serve as the building blocks of proteins
Hope that helped!!
Its C.The unseeing eye, skepticism, being lonely in a crowd
Probably because he wanted to inspire people around the world for the greater good of the world.