Answer:
Nucleic acid.
Step-by-step explanation:
Biomolecules are the important molecules that makes up the constituent of the living organism. Four important types of biomolecule are proteins, carbohydrates, lipids and nucleic acid.
Nucleic acids are DNA nad RNA molecule. They are the polymers of nucleotides. The nucleotides consist of a five carbon sugar, nitrogenous base and the phosphate group.
Thus, the correct answer is option (2).