What effect did the spread of Islam have on the slave trade?

I would never worship any God that require sub-servants that's the God of Islam. Yes slavery is much of their practices especially in the old days. Today its JUST a little SEX SLAVERY. Doesn't mean all Islam believers are bad. I really like Christian's who converted from Islam. Many Hebrew words have more then one meaning.

we need to rethink slavery

Explanation:

albany plan of union, 1754. the albany plan of union was a plan to place the british north american colonies under a more centralized government

a, c, & d are correct:

they wanted lands to settle the extra population.

they wanted new markets for english goods.

they wanted to avoid civil war.