Which of the following villages is not a key village in the Rheingau?

The village of Forst, while well-known and significant in the context of the broader regions of the Pfalz and its wine production, is not considered a key village in the Rheingau. The Rheingau, located along the Rhine River in Germany, is recognized for its production of high-quality Riesling and Spätburgunder wines, with noteworthy villages such as Geisenheim, Rüdesheim, and Johannisberg contributing prominently to its wine reputation.

Geisenheim is famous for its wine research institute and various prestigious wineries, Rüdesheim is known for its picturesque landscape and vibrant wine culture, and Johannisberg is acclaimed for its history in Riesling production. Forst, while it has its own wine identity in the adjacent region, does not hold the same significance within the Rheingau's wine-producing villages. This distinction clarifies why Forst does not belong to the list of key villages specifically associated with the Rheingau.