How did the agriculture revolution affect small farmers

a. it gave them the opportunity to expand their farms

b. it made them solely on raising cattle

c. it elevated then to the middle class

d. it forced many farmers out of business

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

i think the answer is b.