Explanation
The Silk Road passed through Samarkand in Central Asia, the Gobi Desert in Mongolia/China, and Antioch in modern-day Turkey, making "All of these" correct as each location was a key area along the western route.
Practice this MCQ: Name the area(s) crossed by Silk Road in west?. Check correct answer and detailed explanation on MrProfessor.
The Silk Road passed through Samarkand in Central Asia, the Gobi Desert in Mongolia/China, and Antioch in modern-day Turkey, making "All of these" correct as each location was a key area along the western route.