Refer to the two maps What drove the significant change in the slave trade between 1450 and 1750?

European societies stopped the practice of exiling prisoners to their colonial territories.
Competition from agricultural communities of indigenous people increased colonial plantation owners’ demand for enslaved laborers.
It was less profitable for colonial plantation owners to use indentured servants to grow cash crops.
Triangular trade encouraged a direct and profitable exchange between North America and Africa, in which enslaved people were traded for agricultural goods.