The correct answer is (a) Black Forest.
The Black Forest is a mountain range in southwestern Germany. It is located in the state of Baden-Württemberg. The Black Forest is a popular tourist destination, known for its forests, hiking trails, and ski resorts.
The Atlas Mountains are a mountain range in North Africa. They run through Morocco, Algeria, and Tunisia. The Atlas Mountains are the highest mountain range in North Africa.
The Pyrenees are a mountain range that forms a natural border between Spain and France. They are the longest mountain range in the Iberian Peninsula.
The Apennines are a mountain range that runs through Italy. They are the longest mountain range in Italy.