All of the Following Are Oxidation-Reduction Reactions EXCEPT
A) CaCO₃(s) $\to$

All of the following are oxidation-reduction reactions EXCEPT

A) CaCO₃(s) $\to$ CaO(s) + CO₂(g)
B) 2 Na(s) + Br₂(g) $\to$ 2 NaBr(g)
C) Fe(s) + 2 HCl(aq) $\to$ FeCl₂(aq) + H₂(g)
D) 2 C(s) + O₂(g) $\to$ 2 CO(g)
E) 2 H₂O( ) $\to$ 2 H₂(g) + O₂(g)