Correct option is A
Andes Mountains are the longest mountain chain in the world. They extend approximately 7,000 kilometers (4,300 miles) along the western coast of South America, running through seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.
Himalayan mountain range stretches across five countries i.e. India, Nepal, Bhutan, China (Tibet), and Pakistan. It is the highest mountain range in the world, home to Mount Everest (8,848 meters), the highest peak on Earth.
Rocky Mountains are stretch from the northernmost part of British Columbia in Canada to New Mexico in the southwestern United States. It covers over 3,000 miles (4,800 kilometers) and are characterized by rugged peaks, extensive forests, and diverse wildlife. The highest peak in the Rockies is Mount Elbert in Colorado, which stands at 4,401 meters (14,440 feet).
Alps are a prominent mountain range in Europe, extending across eight countries i.e. France, Switzerland, Italy, Monaco, Liechtenstein, Austria, Germany, and Slovenia. They are known for their picturesque landscapes, including snow-capped peaks, deep valleys, and beautiful lakes. Mont Blanc, located on the border between France and Italy, is the highest peak in the Alps, standing at 4,809 meters (15,777 feet).