In the Reactions Below, Which Reaction Correctly Identifies the Anode $\rightarrow$

In the reactions below, which reaction correctly identifies the anode reaction during the discharging (normal usage) of a lead storage battery cell?

A) Pb + SO₄^2- $\rightarrow$ PbSO₄ + 2 e^-
B) Zn + 2 OH^- $\rightarrow$ ZnO + H₂O + 2 e^-
C) 2 MnO₂ + H₂O + 2 e^- $\rightarrow$ Mn₂O₃ + 2 OH^-
D) PbO₂ + 4 H⁺ + SO₄^2- + 2 e^- $\rightarrow$ PbSO₄ + 2 H₂O