Iron will react with water to produce an iron oxide and hydrogen gas. Which equation below represents a correctly balanced equation for this reaction?

A.Fe+4H20-->Fe3O4+4H2
B. 3Fe+H2O-->Fe3O4+H2
C. 3Fe+4H2O-->Fe3O4+4H2
D. 3Fe+4H2O-->Fe3O4+H2