Between the late 1860s and the early 1900s, which of the following BEST describes the changes that occurred in urban population?
African American numbers in living in inner city of northern urban areas more than doubled
many farmers migrated to the cities, while foreign immigrants did not start to come until just after 1900
urban areas of the north became culturally diverse as more immigrants arrived
the US middle class declined as people tended to be either rich businessmen or poor laborers