I think its b but hope this helps :)
Answer:
Synthetic polymers are human-made polymers, and they are commonly found in a variety of consumer products. Various main chains and side chains are used to make different synthetic organic polymers.
Amino acids are Proteins,
Lipids are Fatty acids
Nucleic acid which have nucleotides and, build RNA and DNA
Starches are a cause of Carbohydrates, after lots of Polymers.
So, therefore the answer is a)
I know if you swallow gasoline you will probably die.