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What gave them an advantage is economic prosperity due to rich soil and development of plantations based on slave labor. Many profit was accumulated from crops (tobacco) and also cotton. Later on in the 1800s when Eli Whitney created the cotton gin it created a boom in the slave industry and increased largely by 71%. After that the tool allowed mass production in textile industries.
The correct option is D. All of the above.
The main causes of race riots in American cities include police conduct, ghetto conditions and unemployment.
According to information from Justice Department, one in three African-Americans will spend some time of their life in jail.