(a) which large areas were united under one ruler? give at least three examples

(b) which rulers of dynasties, governments, kings, or emperors united large areas under one rule? give at least three examples.

(c) what are some strategies or practices rulers have used to unify diverse people in their empires under one rule? cite at least three strategies or practices and mention some rulers or governments that used each of those strategies.

answer these asap

A The Mongolians, the Nazi party ,The Roman Empire
B The Mongolians conquered Asia (Genghis Khan), the Nazis conquered Europe (Adolf Hitler) and the Romans conquered Europe (Augustus Caesar)
C Adolf Hitler brought Germany though a great depression. Augustus enslaved all of the neighboring countries Genghis's tribe was attacked by another tribe in a bunch of small tribe wars. So he conquered them all and decided to keep conquering
I would not copy this word for word btw I would use this as an outline because it sounds like they want you to make an essay