Aldehyde, ketone, acid and acid derivatives contain `gtC=O` group. Aldehyde and ketones gives nucleop addition reactions where as acid and acid derivatives gives nucleophilic addition followed by ellmination reaction Nucleophilic addition reactions followed by ellimination of acid derivatives is known as acyl substitution reacts This subsitution reaction takes places by formation of tertrahedral intermediate. For the given reaction

which of these is correct?

Answer

D