A the United States extended its border
Answer:
General Lee blamed himself for the defeat
Bleeding Kansas (1855-1861) consisted of millions of dollars in property damage, and dozens dead, due to the onslaught of violence from pro-slavery Border Ruffians who clashed with Free-Staters (jayhawkers) on the matter of slavery. Eventually, this would lead to the voting of slavery's justification in Kansas, but obviously the popular sovereignty was coated in blood.
The answers are:
c. they segregated blacks and whites
d. they limited voting rights
Hope this helps~!