Respuesta :
Answer:
C. Humans began living in large cities.
Explanation:
By 4,000 B.C., some societies located in the fertile valleys of large rivers became more prosperous and complex thanks to the geographical conditions that favored the settlement of farming and livestock villages. This led many Neolithic villages to transform into cities. This change occurred mainly in regions near large river basins such as the Tigris and Euphrates in Mesopotamia, the Ganges and the Indus in India, the Yellow River in China or the Nile in Egypt.