Which of the following is one way to prevent the corrosion of iron?     A. Add carbon to the iron.B. Paint exposed iron parts with protective paint.C. Let the iron develop a natural coat of carbonate.D. Protect the iron from polluted air
B: Painting over a metal surface in order to prevent rust is known as
rust proofing and it works by preventing oxygen and water from reaching
the metal surface thus preventing a redox reaction which would result in
rusting.
