Amacromolecul that contains carbon, hydrogen, oxygen, nitrogen which is used by the body for growth and repair

Protein.

Explanation:

Biomolecules may be defined as the organic molecules that are present in the living organisms. Four important types of biomolecule are carbohydrates, proteins, lipids and nucleic acids.

Proteins are the polymers of the amino acids. The proteins monomer consists of hydrogen, carbon, oxygen and nitrogen. Proteins are important for the living organisms all enzymes, antibodies and clotting factors are made up of proteins. The proteins are important for the repair and the growth of the body.

Thus, the answer is proteins.

b c a d mark me

thinking it would be d not too sure but i think it's right