Plz help not much time left

What is one reason the united states had a two party system

After the supreme court’s ruling on the dred scott case, many people in the north believed that a. slavery might become legal everywhere. b. slavery might be banned everywhere. c. formerly enslaved people would move to the north. d. formerly enslaved people would stay in the south.

The purpose of lycees was to a: prepare male candidates for government jobs b: prepare male candidates for the napoleonic wars c: prepare female candidates for government jobs