The correct option is D C6H5CH2Cl+NH3→C6H5CH2NH2
(a) Ammonolysis of alkyl halides is the reaction of alkyl halide with NH3 which leads to the prepartion of amines.
It is a nucleophilic substitution reaction.
C6H5CH2Cl+NH2→C6H5CH2NH2
(b) In this reaction, aniline react with acid to form ammonium salt.
(c). It is a nucleophilic addition reaction.
(d). It is the reduction reaction of nitrile to amine.
Hence, option (a) is correct.