Answer:
OD is the correct answer Hope you get a good test grade It is Use a barter system .
Explanation:
Answer:
Thanks but the answer is true...
After the unification of China in the beginning of the Qin Dynasty, China's First Emperor, Qin Shihuang, linked the walls of the three northern states (Qin, Zhao, and Yan).
Practice of formalized , polytheistic religion
1.) Better roads
2.) Tracks si it was better to navigate