What Is True About Black Labor During World War II

What is true about black labor during World War II?

A) The agricultural economy began to recover, and few blacks left the farms voluntarily.
B) Pressure from the government, and the promise of high wages, drew many blacks into industrial positions that were previously only occupied by whites.
C) There were very few changes for blacks during World War II.
D) Blacks began to speak out about greater changes in jobs, but were rarely able to take advantage of the situation.