The binding energy of deuteron is $2.2 \;Mev$ and that of $_2He^4$ in $28\;Mev$ . If two deuterons are fused to form one $_2He^4$, then the energy released is

Question

$\begin{array}{1 1} 19.2\;Mev \\ 23.6\;Mev \\ 25.8\;Mev \\ 30.2\;Mev \end{array} $