An organic compound $\left[\mathrm{A}\right]\left({\mathrm{C}}_4{\mathrm{H}}_{11} \mathrm{N}\right)$, shows optical activity and gives ${\mathrm{N}}_2$ gas on treatment with ${\mathrm{HNO}}_2$. The compound $\left[\mathrm{A}\right]$ reacts with ${\mathrm{PhSO}}_2\mathrm{Cl}$ producing a compound which is soluble in $\mathrm{KOH}$. The structure of $\mathrm{A}$ is :

Given:
1. Compound is optically active $\Rightarrow$ contains chiral carbon/Nitrogen.
2. Compound liberates ${\mathrm{N}}_2$ gas with ${\mathrm{HNO}}_2\Rightarrow$ It is primary amine
3. Compound reacts with ${\mathrm{PhSO}}_2\mathrm{Cl}$ and the product is soluble in $\mathrm{KOH}$ - It is a primary amine.

Option (A) and (D) are primary amines. But only option (D) satisfy all the above conditions.