An organic compound [ A ] C 4 H 11   N , shows optical activity and gives N 2 gas on treatment with HNO…

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.