Answer:
B. fatty acids , DNA
Step-by-step explanation:
Monomers are the simplers substances that are bonded together to form complex molecules called polymers. Given pairs represent monomers and respective polymers. However, DNA is a polymer of deoxyribonucleotides. DNA is one of the two types of nucleic acids. Four types of deoxyribonucleotides are bonded by phosphodiester bonds to form DNA strands.
Fatty acids are the lipids. Fatty acids are carboxylic acids. They have hydrocarbon chains with various number of carbon atoms.