African Kings select the individuals who they traded for slavery if they were Criminals, debtors, and prisoners of war.
In the appropriate publications, African slavery is classified into native slavery and export slavery, trusting on whether or not workers were traded further to the mainland.
African Kings choose the people who they traded for slavery by if they were Criminals, debtors, and prisoners of war because it was decided by the African kings to punish as a slave the criminals and debtors of the war.
Therefore, option B is correct.
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