Which statement best describes the diagram? The catalyzed reaction passes through C. The energy of the catalyst is shown by A. The reaction pathway through B is faster. The energy of the reactants with catalyst is at D.

Remember that rust prevented by placing a sacrificial electrode in electrical contact with the iron. the sacrificial electrode must be composed of a metal that  oxidizes  more easily than iron (that is, it must be below iron in table 18.1).