The Half-Reaction Occurring at the Cathode in the Balanced Reaction

The half-reaction occurring at the cathode in the balanced reaction shown below is __________. 3MnO₄^- (aq) + 24H⁺ (aq) + 5Fe (s) → 3Mn²⁺ (aq) + 5Fe³⁺ (aq) + 12H₂O (l)

A) MnO₄^- (aq) + 8H⁺ (aq) + 5e^- → Mn²⁺ (aq) + 4H₂O (l)
B) 2MnO₄^- (aq) + 12H⁺ (aq) + 6e^- → 2Mn²⁺ (aq) + 3H₂O (l)
C) Fe (s) → Fe³⁺ (aq) + 3e^-
D) Fe (s) → Fe²⁺ (aq) + 2e^-
E) Fe²⁺ (aq) → Fe³⁺ (aq) + e^-