The correct answer is B. Alps, Carpathians, Pyrenees, Apennines.
The Alps are the highest and most extensive mountain range system in Europe, stretching approximately 1,200 kilometers (750 mi) across eight Alpine countries: Austria, France, Germany, Italy, Liechtenstein, Monaco, Slovenia, and Switzerland. The Alps are a popular destination for skiing, snowboarding, hiking, and mountaineering.
The Carpathians are a mountain range system that runs through Central and Eastern Europe. The Carpathians are the second-longest mountain range system in Europe, after the Alps. The Carpathians are a popular destination for skiing, snowboarding, hiking, and mountaineering.
The Pyrenees are a mountain range that forms a natural border between Spain and France. The Pyrenees are the longest mountain range system in the Iberian Peninsula. The Pyrenees are a popular destination for skiing, snowboarding, hiking, and mountaineering.
The Apennines are a mountain range that runs along the spine of Italy. The Apennines are the longest mountain range system in Italy. The Apennines are a popular destination for skiing, snowboarding, hiking, and mountaineering.
The Andes are a mountain range system in South America that runs along the western coast of the continent. The Andes are the longest continental mountain range in the world, and the highest outside Asia. The Andes are a popular destination for skiing, snowboarding, hiking, and mountaineering.
The Himalayas are a mountain range system in Asia that separates the Indian subcontinent from the Tibetan Plateau. The Himalayas are the highest mountain range in the world, and include Mount Everest, the highest mountain on Earth. The Himalayas are a popular destination for skiing, snowboarding, hiking, and mountaineering.
The Rock Mountains are a mountain range system in North America that runs from the Yukon Territory in Canada to the Mexican state of Chihuahua. The Rock Mountains are the longest mountain range system in North America. The Rock Mountains are a popular destination for skiing, snowboarding, hiking, and mountaineering.