For the reaction $K_4[Fe(CN)_6] \xrightarrow{\text{oxidation}} Fe^{3+} + CO_2 + NO_3^-$,which of the following statements is incorrect?

  • A
    $Fe$ is oxidized from $Fe^{2+}$ to $Fe^{3+}$.
  • B
    Carbon is oxidized from $C^{2+}$ to $C^{4+}$.
  • C
    $N$ is oxidized from $N^{3-}$ to $N^{5+}$.
  • D
    Carbon is not oxidized.

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