The Half-Reaction That Should Occur at the Anode During Electrolysis $\rarr$

The half-reaction that should occur at the anode during electrolysis of aqueous potassium bromide solution is:

A) Br₂(g) + 2 e^- $\rarr$ 2 Br^-(aq)
B) 2 Br^-(aq) $\rarr$ Br₂(l) + 2 e^-
C) 2 H₂O $\rarr$ O₂(g) + 4 H⁺(aq) + 4 e^-
D) 2 H⁺(aq) + e^- $\rarr$ H₂(g)
E) Na⁺(aq) + e^- $\rarr$ Na(s)