Chemistry - Hydrocarbon Question with Solution | TestHub

In the reaction
$\text{CH}\equiv \text{CH}\stackrel{{\text{Na/NH}}_{\text{3}}\text{/}\left(\text{l}\right)}{\to }\text{(A)}\stackrel{\text{DCl}}{\to }\text{(B)}\stackrel{\text{(i)}{\text{Sia}}_{\text{2}}\text{BH}}{\to }\text{(C)}$, the product 'C' is