During World War II, many African Americans

A. found work with national defense employers.

B. carried out a large protest march on Washington, DC

C. served in military units that were not segregated.

D. joined organizations dedicated to fighting segregation.

The correct answer is D. joined organizations dedicated to fighting segregation.

This is how the early civil rights movement began before everything that happened in the 60s. They didn't like the fact that African-Americans were fighting in the war and protecting western civilization while still not getting fundamental rights by those same people that they were protecting.