In the years leading up to the 1860 presidential election, which of the following included a provision that people of African descent were not US citizens?
0 the Kansas-Nebraska Act
O the federal slavery code
O the Dred Scott decision
O the Republican Party platform

c

explanation:

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.

he government should regulate the economy