The option that best describes the significance of the great wall in the history of China is B. It prevented any raiders or invaders from ever entering into China.
The Great Wall of China is an ancient series of walls and fortifications, accounting for more than 13,000 miles in length, located in northern China.
The Great Wall was created under rule of Emperor Qin Shi Huang in the third century B.C. in an attempt to avert incursions from barbarian nomads.