Biology

The correct answer is: C.Monomers.

Carbon compounds can form small single subunits called monomers. Monomers are the building blocks that can join together to form larger structures, such as polymers or macromolecules.

A.Macromolecules are large, complex molecules, which can be polymers (like proteins, nucleic acids, and polysaccharides), but not all macromolecules are polymers.

B.Polymers are large molecules f...