If $E_1$ denotes the event of coming sum 6 in throwing two dice and $E_2$ be the event of coming 2 in any one of the two, then $P(E_2/E_1)$ is

Question

$\begin {array} {1 1} (A)\;\large\frac{1}{5} & \quad (B)\;\large\frac{4}{5} \\ (C)\;\large\frac{3}{5} & \quad (D)\;\large\frac{2}{5} \end {array}$