The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is

• A

  a carbonyl compound with a hydrogen atom on its alphacarbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation

• B

  a carbonyl compound with a hydrogen atom on its alphacarbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism

• C

  a carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol

• D

  a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration.