The correct option is C Esterification
Conversion of a carboxylic acid to an ester is known as esterification where primary alcohol is treated with a carboxylic acid in the presence of sulphuric acid. The compound obtained is called ester which has fruity smell.
The chemical reaction for esterification is given below:
CH3COOH+CH3CH2OHH+−−−−−−−−→EsterificationCH3COOCH2CH3+H2O Acetic acid Ethyl alcohol Ethyl Acetate
Hence, option (c) is correct.