Read the following passage and answer the question below. The Great Wall of China is one of the most remarkable feats of engineering in human history. Constructed over many centuries by various Chinese dynasties, the wall was built primarily to protect against invasions from nomadic groups to the north. Contrary to popular belief, the wall is not a single continuous structure but rather a series of walls, fortifications, and watchtowers built by different rulers at different times. Some sections were made of packed earth and wood, while later sections, particularly those built during the Ming Dynasty, were reinforced with brick and stone. Today, the wall stretches for thousands of kilometers across northern China, though many sections have deteriorated due to erosion and human activity. It remains a powerful symbol of Chinese history and draws millions of tourists every year who wish to walk along its ancient pathways. Question: According to the passage, why was the Great Wall originally built?
- A. To mark provincial boundaries
- B. To protect against invasions from nomadic groups ✓
- C. To attract tourists
- D. To serve as a trade route
Correct answer
B. To protect against invasions from nomadic groups
Explanation
The passage states the wall was built primarily to protect against invasions from nomadic groups to the north.