Explanation:

- Esters: These are formed when an oxoacid (often a carboxylic acid) reacts with a hydroxyl compound like an alcohol or phenol. This process is called esterification.

- Correct Answer

- Carbonyls: This term refers to a functional group, not a group of compounds formed from oxoacid and hydroxyl reactions. Carbonyls are part of aldehydes and ketones.

- Amines: Compounds with nitrogen atoms bonded to alkyl or aryl groups. They are not typically formed from reactions between oxoacids and hydroxyl compounds.

- Carboxylic acids: These are oxoacids themselves. When reacting with alcohols, they typically form esters.