Arrange the following steps in the electrochemical mechanism of the rusting of iron in the correct chronological order (from start to finish): 1. Oxidation of Fe to Fe2+ ions at the anodic area. 2. Reduction of oxygen in the presence of H+ ions to form water at the cathodic area. 3. Migration of Fe2+ ions and reaction with dissolved oxygen to form Fe3+ ions. 4. Hydration of ferric oxide (Fe2O3) to form rust (Fe2O3·xH2O). Select the correct option:

Options:

• A: 2 -> 1 -> 3 -> 4
• B: 1 -> 2 -> 3 -> 4
• C: 1 -> 3 -> 2 -> 4
• D: 2 -> 3 -> 1 -> 4

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