During the period from 1800 to 1865, the issues of states' rights, the tariff, and slavery led most directly to the growth of which trend?

a( industrialization
b(imperialism
c(national unity
d(sectionalism

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife