Explanation
The Caucasus mountain range spans across Georgia, Armenia, and Azerbaijan, forming a natural border between Eastern Europe and Western Asia. Therefore, it is located in all three countries, making "All of these" the correct answer.
Practice this MCQ: Series of mountain ranges Caucasus is located in:. Check correct answer and detailed explanation on MrProfessor.
The Caucasus mountain range spans across Georgia, Armenia, and Azerbaijan, forming a natural border between Eastern Europe and Western Asia. Therefore, it is located in all three countries, making "All of these" the correct answer.