Ethyl methyl ether, on treating with cold concentrated $\text{HI}$, gives ______.

The product $\text{'}\mathrm{C}\text{'}$ in the following reaction is ______.

${\text{CH}}_{\text{3}}\text{Br }\stackrel{\text{alc. KCN}}{\to }\text{'A' }\stackrel{{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}}{\to }\text{'B' }\stackrel{{\text{LiAlH}}_{\text{4}}}{\to }\text{'C'}$