In the given compound, the number of 2$$^\circ$$ carbon atom/s is ________.

Consider the above chemical reaction. Product "A" is :

Given below are two statements :

Statement I : Nitration of benzene involves the following step -

Statement II : Use of Lewis base promotes the electrophilic substitution of benzene.

In the light of the above statements, choose the most appropriate answer from the options given below :

In the above chemical reaction sequence "$$\mathrm{A}$$" and "$$\mathrm{B}$$" respectively are