The correct answer is $\boxed{\text{C}}$.
Acetophenone is a colorless, flammable liquid with a peppermint-like odor. It is used as a solvent and in the manufacture of pharmaceuticals and other chemicals.
Acetone is a colorless, flammable liquid with a characteristic sweet odor. It is used as a solvent, in the manufacture of plastics and other chemicals, and as a fuel.
Acetic acid is a colorless, pungent-smelling liquid that is commonly known as vinegar. It is used as a food additive, in the manufacture of plastics and other chemicals, and as a solvent.
Phenyl acetate is a white, crystalline solid with a pleasant odor. It is used as a flavoring agent, in the manufacture of pharmaceuticals and other chemicals, and as a solvent.
The formula $C_6H_5-CO-CH_3$ represents a compound with the following structure:
This compound is named acetophenone. It is a ketone, which is a compound that contains a carbonyl group (C=O) attached to two alkyl groups. In acetophenone, the carbonyl group is attached to a phenyl group (C6H5-) and a methyl group (CH3-).
Acetophenone is a colorless, flammable liquid with a peppermint-like odor. It is used as a solvent and in the manufacture of pharmaceuticals and other chemicals.