The increasing order of the reactivity of the following compound in nucleophilic addition reaction is : Propanal, Benzaldehyde, Propanone, Butanone
(1) Butanone < Propanone < Benzaldehyde < Propanal
(2) Benzaldehyde < Butanone < Propanone < Propanal
(3) Propanal < Propanone < Butanone < Benzaldehyde
(4) Benzaldehyde < Propanal < Propanone < Butanone