Answer:
The explanation that best describes biological molecules is C. -Biological molecules are found in living things; the main groups are carbohydrates, proteins, nucleic acids, and lipids.
Step-by-step explanation:
There are three reasons that fundament C as the best option. First of all, biological molecules are present in all living things, however, they are not made by them and they don't make living things. They constitute them because they didn't design to make them. Also, because their major groups are carbohydrates, lipids, proteins, and nucleic acids.