Answer:
The answer to your question is: A. All are polymers
Step-by-step explanation:
Proteins are polymers that give structure to the cell, also they are enzyme which work in cellular metabolism, etc. The unit of proteins are aminoacids.
Carbohydrates are polymers that are the primary source of energy of the cells, their unit is monosaccharides.
Nucleic acids are polymers located in the nucleus of the cell, they particiated in the inheritance of traits. Their unit are nucleotides.
Lipids are polymers that form the cell membrane and give protection to the cell. Their unit is fatty acids.
a. All are polymers.
b. carbohydrates and proteins
c. nucleic acids
d. proteins, carbohydrates, and nucleic acids