Many African Americans during World War I

A. could not find work at all.

B. not move to find work.

C. found work in rural areas.

D. found work in northern cities

D. found work in northern cities

Explanation:

The movement of around half a million African Americans to cities in the North between 1914 and 1920 is called the Great Migration. Black people massively migrated from the poor and racist South to settle in Chicago, New York, Cleveland and other cities. It supposed a major urban, human and cultural transformation for those cities.