82. For corrosion of iron, which of the following statements is (are) true?

 I. Anode reaction: Fe → Fe²⁺ + 2e^– 

II. Cathode reaction: O₂ + 2H₂O + 4e^– → 4OH^– 

III. Moisture serving as a salt bridge 

(A) I
(B) III
(C) I and II
(D) I, II, and III
(E) None of the statement is true

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