Iron metal, Fe(s), undergoes a chemical reaction with oxygen, producing Fe2O3. In Fe2O3, the oxidation number of iron is +3. According to this information, was iron reduced and then oxidized?
A. Yes, iron was reduced and then oxidized.
B. No, iron was not reduced and then oxidized.
C. It is unclear whether iron was reduced and then oxidized.
D. None of the above.