Balance the Following Net Ionic Equation Using the Half Reaction $\rightarrow$

Multiple Choice

Balance the following net ionic equation using the half reaction method (in acidic solution) . What is the coefficient for MnO₄^-?
H⁺ + Fe²⁺ + MnO₄^- $\rightarrow$ Fe³⁺ + Mn²⁺ + H₂O

A) 8
B) 5
C) 1
D) 14