Answer:
The righ anser here is A. They named it the "Middle Kingdom," indicating that it was the center of the world.
Step-by-step explanation:
The Chinese civilization, one the greatest human civilizations throughout history, is ethnocentric. The Chinese always saw themselves as the center of civilization and all peoples out of the reach of Chinese customs and culture were considered barbarians. Historically, China has not seen other states as equals; other states were treated as vassals who had to pay tribute to the Chinese emperor, an acknowledgement of the superiority of his empire.