Which class of biomolecule is built from nucleotide monomers?
AProteins
BNucleic acids (DNA and RNA)
CCarbohydrates such as starch and glycogen
DLipids, including fats, oils, and waxes
Explanation
Nucleic acids (DNA, RNA) are polymers of nucleotide monomers — each nucleotide is a phosphate + sugar + nitrogenous base. Proteins are polymers of *amino acids*. Carbohydrates are polymers of *monosaccharides* (e.g., glucose). Lipids are not true polymers — they assemble from fatty acids and glycerol but do not repeat a single monomer.