$(i)$ $A$ and $D$ both form blue-violet colour with ninhydrin.

$(ii)$ Lassaigne extract of $\mathrm{C}$ give  positive $\mathrm{AgNO}_{3}$ test and negative $\mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$ test.

$(iii)$ Lassaigne extract of $\mathrm{B}$ and D gives positive sodium nitroprusside test

Based on these observations which option is correct ?

$(1)$ $\begin{matrix}
   C{{H}_{3}}  \\
   |\,\,\,\,\,\,  \\
   ZNH\,C\,HC{{O}_{2}}H  \\
\end{matrix}$                             $(2)$ $\begin{matrix}
   C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   {{H}_{2}}N\,C\,HC{{O}_{2}}C{{H}_{2}}{{C}_{6}}{{H}_{5}}  \\
\end{matrix}$

$(3)$ $\begin{matrix}
   \,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}}{{C}_{6}}{{H}_{5}}  \\
   |\,\,\,\,\,  \\
   ZNH\,C\,HC{{O}_{2}}H  \\
\end{matrix}$                $(4)$ $\begin{matrix}
   C{{H}_{2}}{{C}_{6}}{{H}_{5}}\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   {{H}_{2}}N\,CHC{{O}_{2}}C{{H}_{2}}{{C}_{6}}{{H}_{5}}  \\
\end{matrix}$