Which system did the new government created under the Constitution use? A.
a unitary system with all power concentrated in a central government
B.
a presidential system with a unicameral legislature
C.
a confederation with a better-organized central government than under the Articles of Confederation
D.
a totalitarian system
E.
a federal republic

to answer this question you need to explain more

i can

explanation:

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.