What Are the Coefficients of the Balanced Equation That Represents $\rightarrow$

Multiple Choice

What are the coefficients of the balanced equation that represents the reaction in a magnesium/iron electrochemical cell? Mg (s) + Fe²⁺ (aq) $\rightarrow$ Fe (s) + Mg²⁺ (aq)

A) 1,1,1,1
B) 1,2,2,1
C) 2,1,1,2
D) 1,2,1,2