Question

Which fact illustrates China's geographical isolation?

А
Silk manufacture originated in China.
B.
Buddhism spread through China after the fall of the Han.
с
The ancient Chinese referred to their land as the "Middle Kingdom."
D
Qin Shihuangdi built the Great Wall.

Answer 1

the answer is D, the building of the Great Wall

Answer 2

C. The middle kingdom. Everybody wants to be in the middle