C I was think is the correct answer ♀️
People in the south used slaves because their economy was focussed on things like cash crops (tobacco, cotton, etc.) These crops required a lot of work so farmers and plantation owners could not do it by themselves. So by using enslave persons they could harvest more crops, sell more, make more money, and in return boost the southern economy.
As a new faith, Islam gained strength<span>(A) within portions of the former Roman Empire.</span>
