Which topic sentence indicates that a certain text contains information on the formation of the confederacy before the civil war?
thousands of africans were brought to america as slaves during the colonial era.
a large number of whites in the southern slave states did not want to be treated as second-class citizens.
although a majority of southerners did not have slaves, they supported slavery as a part of the social and economic order.
there were many misunderstandings between northern states and southern states because of the elections.