Answer:
The correct answer would be B. fatty acids, DNA.
The other options show the pairing of polymer and their monomer units.
For example, proteins are the polymers of amino acids, starch is polymer made up of several glucose units.
Similarly, DNA or deoxyribonucleic acid is a double stranded molecule made up of nucleotides (not fatty acids) attached via phospho-di-ester bond.
The nucleotide is consisted of deoxyribose sugar, a nitrogenous base, and phosphorus group.
Thus, fatty acids and DNA make the inappropriate pairing as compared to other options.
