Which of the following will not undergo aldol condensation

Aldol condensation is a chemical property of the aldehydes in which two molecules of the aldehydes combines to form a compound in which alcohol and aldehyde groups are present. But the requirement for the aldehyde to show aldol condensation is that, the aldehyde must have 훼−퐻푦푑푟표푔푒푛. So, the benzaldehyde whose formula is 퐶6퐻5퐶퐻푂 doesn’t have 훼−퐻푦푑푟표푔푒푛 so, it cannot show aldol condensation.