Für wie viele Jahre wird der Landtag in Baden-Württemberg gewählt?

Why this is the correct answer

Baden-Wurttemberg's state parliament (Landtag) is elected every five years, consistent with the term lengths used by most German states. This five-year cycle applies to state-level elections in Baden-Wurttemberg, even though federal Bundestag elections are also held on a four-year cycle.