HELP, 10 POINTS! I ONLY HAVE 11 POINTS I NEED HELP ASAP.

Which statements about slavery in Brazil are true?

Choose all answers that are correct.

Question 6 options:

By 1820 enslaved people accounted for nearly one-third of Brazil's population


Slavery began during the Portuguese colonization of Brazil.


Plantations and mining operations fed the demand for slaves.


Slavery ended when Brazil stopped importing Africans as slaves.