Which Pair of Half-Reactions Could Be Used to Electroplate Silver $\rightarrow$

Multiple Choice

Which pair of half-reactions could be used to electroplate silver onto iron?

A) reduction: Ag⁺ + e^- $\rightarrow$ Ag; oxidation: Ag $\rightarrow$ Ag⁺ + e^-
B) reduction: Ag $\rightarrow$ Ag⁺ + e^-; oxidation: Ag⁺ + e^- $\rightarrow$ Ag
C) reduction: Fe²⁺ + 2 e^- $\rightarrow$ Fe; oxidation: Fe $\rightarrow$ Fe²⁺ + 2 e^-
D) reduction: Fe $\rightarrow$ Fe²⁺ + 2 e^-; oxidation: Fe²⁺ + 2 e^- $\rightarrow$ Fe