In ion electron method of balancing, equations are:

Explanation

The ion-electron method, or the half-reaction method, is a systematic approach to balancing redox reactions. It involves splitting a redox equation into two separate half-reactions: one for oxidation and one for reduction. Each half-reaction is balanced on its own, and then they are combined to give the balanced redox equation. This method ensures that both mass and charge are conserved. Option B is correct because it accurately describes this method. Options A, C, and D are incorrect because they do not reflect the complete scope of the ion-electron method, which involves both oxidation and reduction processes.