Answer:
The correct answer in this case is carbohydrate.
Step-by-step explanation:
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A monomer is a simple molecule that together with other forms more complex molecules.
Proteins are made up of amino acids. These are the monomers.
Nucleic acids are made up of nucleotides, which are monomers.
A carbohydrate is made up of monomers.
The correct answer in this case is carbohydrate.