Option 1 -> Includes Mt. Elbrus (B), which is located in Europe (Caucasus Mountains, Russia), not North America.
Option 2 -> Includes Mt. Elbrus (B) which is in Europe, and excludes the Rockies (A) which are in North America.
Option 3 -> Includes Mt. Elbrus (B), which is the highest peak in Europe, located in Russia, not in North America.
Option 4 -> Correctly includes only the Rockies (major mountain range in western North America), Alaska Range (mountain range in Alaska, USA), and Sierra Nevada (mountain range in California/Nevada, USA), while excluding Mt. Elbrus which is in Europe.
Hence, Option 4: (A), (C) and (D) only -> Mt. Elbrus is located in the Caucasus Mountains in Russia and is the highest mountain in Europe, making it the only option not found in North America. The Rockies, Alaska Range, and Sierra Nevada are all prominent mountain ranges located in North America -> correct