(image) $\xrightarrow[(273-278\,K)]{NaN{{O}_{2}}/HCl}X$ ${\mkern 1mu} \xrightarrow{{N,N\, - \,\dim ethyl\,\,aniline}}Y$
The structure of $'Y'$ would be



Assertion $A$ : Aniline on nitration yields ortho, meta and para nitro derivatives of aniline.
Reason $R$: Nitrating mixture is a strong acidic mixture.
In the light of the above statements, choose the correct answer from the options given below