When the lead storage battery is in use (during discharge) the reaction that occurs at the anode is

Options

1. APbSO ₄( ~s )+2 H ₂ O ( ) PbO ₂( ~s )+ SO ₄²⁻( aq )+4 H ⁺( aq )+2 e ⁻
2. BPb ( s )+ PbO ₂( ~s )+2 H ₂ SO ₄( aq ) 2 PbSO ₄( ~s )+2 H ₂ O ( l )
3. CPb ( s )+ SO ₄²⁻( aq ) PbSO ₄( ~s )+2 e ⁻
4. DPbO ₂( ~s )+ SO ₄²⁻( aq )+4 H ⁺( aq )+2 e ⁻ PbSO ₄( ~s )+2 H ₂ O (l)