If the $E^{\circ}_{cell}$ of an equilibrium reaction $A_{(s)} + 2B^{2+}_{(aq)} \rightleftharpoons A^{2+}_{(aq)} + 2B_{(s)}$ at $298 \ K$ is $0.59 \ V$,the equilibrium constant $K_c$ is
- A$1.0 \times 10^{10}$
- B$1.0 \times 10^2$
- C$1.0 \times 10^{-20}$
- D$1.0 \times 10^{20}$
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