The Great Wall of China was built to protect settled lands against nomadic raiders. None of these answers are correct. to divide China administratively into prefectures. to protect the Yangtze River basin and the fertile areas of the Red River.

The Great Wall of China, a marvel of ancient engineering, was primarily constructed to safeguard agricultural lands from invasions by nomadic tribes to the north. Covering thousands of miles, including various sections built over different dynasties, it stands as a testament to the lengths the Chinese went to ensure their safety and control. In modern times, the Great Wall serves not just as a historical site but also as a significant tourist attraction, drawing millions each year. Its importance extends beyond tourism; it symbolizes resilience, unity, and the rich cultural heritage of China, reminding us of the human spirit's determination to protect and build.