Given the Following Net Ionic Equation,select the Correct Pairing of Half-Reactions

Given the following net ionic equation,select the correct pairing of half-reactions. Mg (s) + Zn²⁺ (aq) $\rightarrow$ Mg²⁺ (aq) + Zn (s)

A) reduction: Mg $\rightarrow$ Mg²⁺ + 2 e^-; oxidation: Zn²⁺ + 2 e^- $\rightarrow$ Zn
B) reduction: Zn²⁺ + 2 e^- $\rightarrow$ Zn; oxidation: Mg $\rightarrow$ Mg²⁺ + 2 e^-
C) reduction: Zn²⁺ + 2 e^- $\rightarrow$ Zn; oxidation: Mg²⁺ + 2 e^- $\rightarrow$ Mg
D) reduction: Zn $\rightarrow$ Zn²⁺ + 2 e^-; oxidation: Mg $\rightarrow$ Mg²⁺ + 2 e^-