Which organic compound has the structure R−COOH, with R referring to the alkyl, alkenyl, aryl, or other group?

Correct option is A

The organic compound with the structure R−COOH, where R refers to the alkyl, alkenyl, aryl, or other group, is a carboxylic acid. Therefore, the correct option is (a) Carboxylic acid.
• Carboxylic acids are organic compounds that contain a carboxyl group (-COOH) attached to an alkyl, alkenyl, aryl, or other group.
• They are commonly found in many natural sources, including fruits, vegetables, and animal fats.
• Carboxylic acids have a wide range of applications, including in the production of pharmaceuticals, plastics, and food additives.