I think the answer is D sorry if I am wrong :)) also, the constitution gave African American the right to vote but I’m not sure about the whole south
Explanation:
Why did Rome change from a republic to an empire ruled by an emperor? Well, the Roman Republic stood for a handful of centuries, the government began eventually started to tear it apart. Civil wars started between groups and loyalties. And that brought about the transformation of the republic into an empire.
China has a (Socialist) government