The correct option is B C2H5NH2
Carbylamine reaction is given by only primary amine. Hence C2H5NH2 gives carbylamine reaction as it is the only primary amine out of the given options.
R−NH2+CHCl3+3KOH(alcoholic)Δ→R−NC+3KCl+3H2O
Hence, (a),(c) and (d) do not give carbylamine reaction and are the correct options.