Answer :
A) a polymer. Polymers are large molecules made of small molecules called monomers.
Answer;
-A polymer
Explanation;
A polymer is a large molecule made up of similar or identical subunits called monomers.
For example starch and cellulose are polymers or a macromolecules that are composed of many monosaccharides or simple sugars. Proteins are polmers of amino acids.