Consider the Following Standard Reduction Potentials in Acid Solution The Strongest Reducing Agent Among Those Shown Above Is
A)

Consider the following standard reduction potentials in acid solution: $\begin{array}{ll}&\underline{\mathrm{E}^\circ(V) }\\\mathrm{Al}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Al}(\mathrm{~s}) & -1.66 \\\mathrm{AgBr}(\mathrm{~s}) +\mathrm{e}^{-} \rightarrow \mathrm{Ag}(\mathrm{~s}) +\mathrm{Br}^- & +0.07 \\\mathrm{Sn}^{4+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Sn}^{2+} & +0.14 \\\mathrm{Fe}^{3+}+\mathrm{e}^{-} \rightarrow \mathrm{Fe}^{2+} & +0.77\end{array}$ The strongest reducing agent among those shown above is

A) Fe³⁺.
B) Fe²⁺.
C) Br^-.
D) Al³⁺.
E) Al.