Which of the following are not polymeric?

Proteins (polymers of amino acids), Nucleic acids (polymers of nucleotides), and Polysaccharides (polymers of monosaccharides) are true macromolecules. Lipids are not considered polymers because they are not made of repeating monomeric units linked by covalent bonds in the same way; they are smaller molecules like triglycerides formed from glycerol and fatty acids.