Answer the question on the basis of passage given below:

There are three kinds of amines which are primary, secondary and tertiary amines. These amines may have alkyl group or aryl group or both alkyl and aryl groups. These amines can be distinguished from one another by various chemical tests.

A and B are, respectively:

The correct answer is option 1.

The final product here is an azo dye. We know 5hat to prepare an azo dye we need a phenol, sodium hydroxide and a benzene diazonium chloride. The the compound \(C\) has to be a benzene diazonium chloride. We know to prepare a diazonium chloride by diazotization we need an amine, so the compound \(B\) must be Aniline. also knoe to prepare an amine via reduction we need a nitro compound so the compound \(A\) must be a nitrobenzene. Now, let us look at the schematics of the reaction: