The answer is C. Cities grew rapidly in a period known as Urbanization. People came to cities to look for new jobs and many other reasons.
Masses of former slaves were needed to work for landowners, housing already existed
Wu Zhao lowered taxes, and increased food production. Also Wu funded public projects and tried to reduce the power of the military in China. Wu also replaced aristocratic military men with scholar-officals.
Above the 1st Cataract of the Nile up to the confluence at Khartoum.
The social contract basically describe the class of people.
