Need help. brainliy to the first person that answers is right telling why

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

lol, i think so.

explanation:

i dont no the claim so it's hard to answer but i think he would go to the people to decide. : ) ; )

i would say it is a and b.

hope this