Consider the following reaction : $xMnO_4^{-} +yC_2O_4^{2-} +zH^{+} \to xMn^{2+} +2yCO_2 +\large\frac{z}{2}$$H_2O$The values of x, y and z in the reaction are, respectively :

Question

$\begin{array}{1 1} (1) 5,2\;and\;16 \\ (2) 2,5\;and,8 \\ (3) 2, 5\; and \;16 \\(4) 5, 2\; and\; 8 \end {array}$