Which issue was addressed by the Supreme Court in the Dred Scott case? whether Northerners could own slaves

whether free blacks could vote

whether Kansas was a slave or free state

whether slaves were citizens or property

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.