In alkaline medium $H_2O_2$ reacts with $Fe^{3+}$ and $Mn^{2+}$ separately to give

Question

$\begin{array}{1 1}(a)\;Fe^{4+}\;and\;Mn^{4+}\\(b)\;Fe^{2+}\;and\;Mn^{4+}\\(c)\;Fe^{2+}\;and\;Mn^{2+}\\(d)\;Fe^{4+}\;and\;Mn^{2+}\end{array}$