Help bestie Asap i need to finish it asap

Select the correct answer. how did agricultural advances affect chinese society during the middle ages? a. it led to population growth. b. it decreased life expectancy. c. it lowered industrial operations. d. it resulted in more people moving to rural areas.

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?

People who move from place to place for survival is called