Which statements about the african slave trade of the 1500s are accurate? choose all answers that are correct.
a. the slave trade began to grow rapidly when the portuguese started growing sugar cane in brazil.
b. the transatlantic slave trade began when merchants from france bought slaves from the king of songhai.
c. the portuguese continued the trans-saharan transportation of slaves to the muslim world into the 1600s.
d. the triangular trade between europe, africa, and the americas, particularly the middle passage, saw millions of afri