What are the precursors that make up macromolecules? A. polymers B. sulfates C. carbohydrates D. monomers

Option D is correct.

D. monomers

Explanation:

When small organic molecules bind together, they form larger molecules called biological macromolecules. Biological macromolecules fall into four categories: carbohydrates, proteins, lipids and nucleic acids.

Macromolecules are formed by repeating sub units called monomers.

First option A) Polymers