which statement summarizes how Portuguese traders amplify the slave trade

A: Portuguese traders engaged in mass kidnapping of the locals to sell into slavery
B: Portuguese traders bought many enslaved people for export to Europe
C: Portuguese traders created entrepots from which large numbers could be shipped overseas to meet the growing demand for forced labor on colonial plantations
D: Portuguese traders introduced slavery to Africa

C: Portuguese traders created entrepots from which large numbers could be shipped overseas to meet the growing demand for forced labor on colonial plantations