Question: The most appropriate reagent for conversion of $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{CN}$ into $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}$ is :
$\mathrm{NaBH}_{4}$
$\mathrm{CaH}_{2}$
$\mathrm{LiAlH}_{4}$
$\mathrm{Na}(\mathrm{CN}) \mathrm{BH}_{3}$
Correct Option: , 3
Solution: