(c)
Carbylamine reaction is given by only primary amines (both aliphatic and aromatic). In this reation a primary amine reacts with chloroform in basic medium, to form a very bad smelling compound, called carbylamines
$C_{6}H_{5}NH_{2} + CHCl_{3}KOH \rightarrow C_{6}H_{5}NC + KCl + H_{2}O$