Answer:
The evidence given to support this when the author states that the wall protects dynasties, since one of the meanings of the eastern dragon is protection.
Explanation:
The eastern dragon is a traditional symbol of some countries like China or Japan and has the meaning of wisdom, strength, power, protection and wealth. It looks like a giant four-clawed snake. The author of the text used the concept and meanings of the eastern dragon to talk about the wall of china. He did this by saying that just as a great and imposing dragon protects his chosen ones, the wall of china protects its dynasties.
