Study the chemical reaction below and answer the questions that follow: 8Al + 3Fe₃O₄ → 4Al₂O₃ + 9Fe How many moles of iron would be produced if 4.0 moles of aluminum reacts with an excess of Fe₃O₄?

A. 4.0 moles
B. 4.5 moles
C. 8.0 moles
D. 9.0 moles