Chlorobenzene can be prepared by reacting aniline with

Given data : It is given to identify chlorobenzene can be prepared by reacting aniline with

Explanation

Aniline and nitrous acid can be combined to create chlorobenzene, which is then heated with cupric chloride.The creation of diazonium salt is the initial stage 

In the second step, a chloro group replaces a diazonium group through the Sandmeyer reaction.The chemical reaction is as follows. 

Therefore, chlorobenzene can be prepared by reacting aniline with nitrous acid followed by heating with cuprous chloride Hence, the correct option is D, Nitrous acid followed by heating with $C{u}_{2}C{l}_2$.

Hence , the correct option (D).Nitrous acid followed by heating with $C{u}_{2}C{l}_2$