For the balanced redox reaction $xMnO_4^- + yC_2O_4^{2-} + zH^+ \to Mn^{2+} + CO_2 + H_2O$,the values of $x, y$ and $z$ are respectively:

  • A
    $2, 5, 16$
  • B
    $16, 5, 2$
  • C
    $5, 16, 2$
  • D
    $2, 16, 5$

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