I believe your answer is a I hope this helps
The factors which led to the fall of the Roman Empire are Barbarian tribe's invasion, Economic troubles, Over expansion and Military Spending, and Government corruption and political instability.
<h3>What is Roman Empire?</h3>
Roman empire was the ancient and the largest empire of the Rome establishes in 27 BC and collapsed in 476 BC. It has the territories in the North Africa, Europe and west Asia.
There were several factors that led to the fall of the Roman Empire such as High spending in the military and the war, troubles in the economy, Government corruption, Barbarian tribe's invasion and political instability.
Learn more about Roman empire here:
brainly.com/question/11415671
#SPJ1
Democracy and republic are the most common. I just asked my history teacher, and that's what he said.
Allowing people to elect who runs their government.
