which repeating unit makes up a protein?\npeptide acids\ncarboxylic acids\nfatty acids\namino acids

which repeating unit makes up a protein?\npeptide acids\ncarboxylic acids\nfatty acids\namino acids
Answer
Brief Explanations:
Proteins are polymers made up of amino - acid monomers linked by peptide bonds. Peptide acids is not a correct term. Carboxylic acids are a general class of organic compounds and not the repeating unit of proteins. Fatty acids are components of lipids, not proteins.
Answer:
amino acids