Treatment of Enslaved Africans in Brazil Was Especially Harsh Because

Treatment of enslaved Africans in Brazil was especially harsh because slaveowners

A) were psychotic racists intent upon the extermination of black people.
B) coldly calculated that they could double their profits by working slaves to death.
C) greatly feared Africans, who far outnumbered the tiny Portuguese slave-holding elite.
D) were ignorant of other ways to increase labor productivity.