Which of the following is NOT a redox equation? _______ A. Al2O3 (aq) + 6NaOH (aq) → 2Al(OH)3 (s) + 3Na2O (aq) B. 2H3O+ (aq) + Cu (s) + 2HNO3 (aq) → Cu2+ (aq) + 2NO2 (g) + 4H2O (l) C. O2 (g) + Cl2 (g) → 2OCl (g) D. 5HSO3– (aq) + 2IO3– (aq) → I2 (aq) + 5SO42– (aq) = 3H+ (aq) + H2O (l) E. None of the Above