The Qing Dynasty ruling from 1644 to 1912.
First of all , most definitely A because its an empire. and B because the emperors like Julius Caesar took power away from the Senate
History helps us develop a better understanding of the world. You can't build a framework on which to base your life without understanding how things work in the world. History paints us a detailed picture of how society, technology, and government worked way back when so that we can better understand how it works now.
Because they needed to be diverted to the war effort