Welches Wappen gehört zum Bundesland Nordrhein-Westfalen?

Why this is the correct answer

North Rhine-Westphalia's coat of arms is a divided shield combining three regional symbols: the green-and-white stripes representing the Rhine Province, the white horse of Westphalia on a red background, and the rose of Lippe on silver. Image 2 correctly displays this composite shield. NRW was created after World War II by merging these historic territories.