Which statement best describes a result of industrialization in the United States during the mid-nineteenth century?
A. People moved to cities in search of economic opportunity.
B. Farmers began to cultivate land west of the Appalachian Mountains.
C. Native peoples were forcibly relocated to western territories.
D. Government officials began to promote the idea of Manifest Destiny.
During the mid-nineteenth century, many Americans "moved to cities in search of economic opportunity." People were leaving their jobs on the farms and taking higher-paying jobs in factories, which tended to be in major cities.
