How do Roman Catholicism and Eastern Orthodoxy differ? A.Roman Catholicism practices baptism, but Eastern Orthodoxy does not. B.Roman Catholicism teaches that the pope is exempt from error, but Eastern Orthodoxy rejects this idea. C.Roman Catholicism rejects the idea of iconoclasm, but Eastern Orthodoxy believes in it. D.Roman Catholicism believes in the Holy Spirit, but Eastern Orthodoxy rejects this idea.