I'm not sure...
But,
It upheld the constitutionality of racial segregation laws for public facilities as long as the segregated facilities were equal in quality – a doctrine that came to be known as "separate but equal".
I guess
B
I think it’s has to d with the north
I think he killed a bunch of people to stop it from happening
The first one A.) to help solve problems American farmers
Native Americans for the most part were not friendly. Who could blame them, since colonists were pretty much invading their territory, and they were kinda cruel. Probably due to fear or caution of native Americans.
Nevertheless, the native Americans were raiding colonists and their homes. This is probably the answer you are looking for. In turn, colonists took matter to their own hands and also hurt the native Americans.
Both sides' distrust of each other escalated to the point where native Americans eventually were nearly wiped out during the expansion of European colonists.