IMAT 2011 Q69 [Oxidation Reduction]

Which one of the following is not an oxidation/reduction reaction?

A. {2Fe} + {3Cl_2}{2FeCl_3}
B. {Cl_2} + {H_2O}{HCl} + {HClO}
C. {KClO_4}{KCl} + {2O_2}
D. {NaCl} + {H_2SO_4}{NaHSO_4} + {HCl}
E. The electrolysis of sodium chloride solution