The correct answer is Iron oxide is the oxidizing agent.Chemical reaction:It is a process in which one or more substances, the reactants, are converted to one or more different substances, the products.A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.Explanation:Oxidation: The addition of oxygen/electronegative element to a substance or removal of hydrogen/electropositive element from a substance is called oxidation. Reduction: The removal of oxygen/electronegative elements from a substance or the addition of hydrogen/electropositive elements to a substance is called reduction. ?Oxidation and reduction always occur simultaneously, hence, the word ‚¬Å“redox‚¬ was coined for this class of chemical reactions. Reducing agent: The element/compound that removes oxygen or donates hydrogen and itself gets oxidized. Oxidizing agent: The element/compound that donates oxygen or removes hydrogen and itself gets reduced. Fe2O3 + 2Al ? Al2O3 + 2FeIn the above chemical reaction, Fe2O3 is getting reduced to Fe.Al is oxidized to Al2O3.Al is the reducing agent.Fe2O3 (iron oxide) is the oxidizing agent.