The correct answer is B. Acyclic compounds.
Acyclic compounds are organic compounds that do not have a ring structure. They are also known as aliphatic compounds. Acyclic compounds can be saturated or unsaturated. Saturated compounds contain only single bonds between carbon atoms, while unsaturated compounds contain one or more double or triple bonds.
Aromatic compounds are organic compounds that have a ring structure and are particularly stable. They are also known as benzenoid compounds. Aromatic compounds are typically found in petroleum and coal tar. They are also used in the production of dyes, plastics, and pharmaceuticals.
Cyclic compounds are organic compounds that have a ring structure. They can be either aliphatic or aromatic. Aliphatic cyclic compounds do not have a benzene ring, while aromatic cyclic compounds do.
Benzenoid compounds are aromatic compounds that have a benzene ring. The benzene ring is a six-membered ring with alternating single and double bonds. It is a very stable structure and is found in many aromatic compounds.