What will be the structure of product $T$ in the following reaction?

Identify substrate $A$ in the following reaction.
$A + AgOH \xrightarrow[ii) \Delta]{i) \text{moist } Ag_2O} CH_3CH_2N(CH_3)_2 + CH_2=CH_2$

What is the product of the following reaction?

Given below are two statements:
Statement $I$: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement $II$: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements,choose the correct answer from the options given below:

$A$ student performed an analysis of an aliphatic organic compound '$X$' which,upon analysis,gave $C=61.01\%$,$H=15.25\%$,$N=23.74\%$. This compound,on treatment with $HNO_2/H_2O$,produced another compound '$Y$' which did not contain any nitrogen atom. However,the compound '$Y$' upon controlled oxidation produced another compound '$Z$' that responded to the iodoform test. The structure of '$X$' is:

$C_6H_5NH_2 \xrightarrow{H_2SO_4, 180^{\circ}C} H_2NC_6H_4(SO_3H)$ (para). Which statement is correct for the product?