Using the Following Data to Calculate K_sp for PbSO₄ $\varepsilon$ °
PbO₂ + 4H⁺ + SO₄^2- + 2e^-

Using the following data to calculate K_sp for PbSO₄. $\varepsilon$ °
PbO₂ + 4H⁺ + SO₄^2- + 2e^- $\to$ PbSO₄(s) + 2H₂O
+1.69
PbO₂ + 4H⁺ + 2e^- $\to$ Pb²⁺ + 2H₂O
+1.46

A) 4.0 $\times$ 10¹⁰⁶
B) 2.5 $\times$ 10^-107
C) 5.9 $\times$ 10⁷
D) 1.7 $\times$ 10^-8
E) None of these is within 5% of the correct answer.