$CH_3-NH_2 \xrightarrow{HNO_2} ?$

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: $\alpha$-halocarboxylic acid on reaction with dil. $NH_3$ gives good yield of $\alpha$-amino carboxylic acid whereas the yield of amines is very low when prepared from alkyl halides.
Reason $(R)$: Amino acids exist in zwitter ion form in aqueous medium.
In the light of the above statements,choose the correct answer from the options given below:

An amine $(X)$ reacts with $p-$toluene sulphonyl chloride to give the product,$Y$,which is insoluble in alkali. The product of $X$ with benzoyl chloride is

The major product in the following reaction is:

In the reaction,$P, Q$ and $R$ respectively are:

Aniline does not undergo