Calculate E°_cell for the Cell for the Reaction Below,
2Cr(s) $\to$

Calculate E°_cell for the cell for the reaction below,
2Cr(s) + 3Sn⁴⁺(aq) $\to$ 3Sn²⁺(aq) +2Cr³⁺(aq)
Given the following standard reduction potentials.
Cr³⁺(aq) + 3e^- $\to$ Cr(s) $~~~~~~~~$$~~~~~~~~$ E ^$\circ$ = -0.74 V
Sn⁴⁺(aq) + 2e^- $\to$ Sn²⁺(aq) $~~~~~~~~$$~ ~~$ E ^$\circ$ = 0.15V

A) 0.89 V
B) 0.59 V
C) 0.42 V
D) -0.59 V
E) (-0.89) V