The equation below represents a redox reaction involving iron(II) chloride and chlorine gas. $2\text{FeCl}_2 + \text{Cl}_2 \rightarrow 2\text{FeCl}_3$ Which equation represents the reduction step in this reaction?
- A$2\text{Cl}^- \rightarrow \text{Cl}_2 + 2\text{e}^-$
- B$\text{Cl}_2 + 2\text{e}^- \rightarrow 2\text{Cl}^-$
- C$\text{Fe}^{2+} \rightarrow \text{Fe}^{3+} + \text{e}^-$
- D$\text{Fe}^{3+} + \text{e}^- \rightarrow \text{Fe}^{2+}$