Which functional groups are present in \({{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{CONH}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\)?

A.     Benzene ring (phenyl), amine

B.     Benzene ring (phenyl), ketone, amine

C.     Benzene ring (phenyl), amide

D.     Alkene, amide

C