Ancestor because the others won’t make scence
The years from the 8th century bce to 221 bce witnessed the painful birth of a unified China. It was a period of bloody wars and also of far-reaching changes in politics, society, and intellectual outlook.
NATO is C. a military and political alliance between a number of European countries along with the U.S. and Canada.
C C C C C C C C C C C C C C C C C
Answer: The answers are 2 and 3
Explanation: Because relocation diffusion isnt 1 or 4 its definitions points to 2 and 3