The only option that can be classified as proteins from the list would be enzymes.
Enzymes are generally proteinous in nature. They are made from amino acids linked together by peptide bonds and folded into specific shapes by specialized organelles in cells.
They are used as catalysts in speeding up the rate of biological reactions.
None of nucleic acids, polysaccharides, or fatty acids are proteinous in nature.
More on enzymes can be found here: https://brainly.com/question/21248499
