The angles of a triangle are in the ratio $2:3:4$ . Then the angles of the triangle are

Question

$\begin{array}{1 1} (a)\;20^{\circ},40^{\circ},60^{\circ}\\ (b)\;40^{\circ},60^{\circ},80^{\circ} \\ (c)\;50^{\circ},40^{\circ},60^{\circ} \\(d)\;40^{\circ},30^{\circ},60^{\circ} \end{array} $