The war industry boom in Oklahoma created problems as it established racially divided areas.
a/It established racially divided areas.
Step-by-step explanation:
Oklahoma was believed to be a sensitive state owing to the presence of large war industry and the sparks that frequently happened between the people of different races.
The growth of the war industry in the state resulted in the segregation of areas separately occupied by people of different races.
Large areas with the dominance of different races were formed and the integrity between the races went on decreasing.