The standard electrode potentials $E^o_{(I_2/I^{-})}$,$E^o_{(Br^{-}/Br_2)}$,and $E^o_{(Fe/Fe^{2+})}$ are respectively $+0.54 \ V$,$-1.09 \ V$,and $0.44 \ V$. On the basis of the above data,which of the following processes is non-spontaneous?

• A
  $Br_2 + 2I^{-} \to 2Br^{-} + I_2$
• B
  $Fe + Br_2 \to Fe^{2+} + 2Br^{-}$
• C
  $Fe + I_2 \to Fe^{2+} + 2I^{-}$
• D
  $I_2 + 2Br^{-} \to 2I^{-} + Br_2$