Respuesta :

Carboxylic Acid 
 (CH3COOH)
It is an acid 
Vinegars Molecular formula is CH₃COOH

A. Alcohol Molecular Formula is C₂H₆O
B Amine is Ammonia which is NH₃
C Carboxylic Acid is Anything combined with O and H IN POLYATOMIC IONS WITH ACID AND BASES OH⁻
D Methyl CH₃

This being said.. It's an example of Methyl  and Carboxylic acid