The Equilibrium Constant at 298 K for the Following Reaction $\rightarrow$

Multiple Choice

The equilibrium constant at 298 K for the following reaction is 1.2 x 10⁵.
H₂(g) + Sn⁴⁺(aq) $\rightarrow$ 2 H⁺(aq) + Sn²⁺(aq)
What is the value of E° for the reaction?

A) -0.15 V
B) 0.15 V
C) 0.30 V
D) 0.35 V
E) 0.45 V