There should be 3. The branches of gov are : Legislative, Executive, and Judicial
C. Acueducts.
I'm sure that's it, good luck ;)
It would be an "authoritarian form of government" that forms when an individual assumes absolute power by seizing control illegally, <span>often with the support of the lower classes, since this usually occurs when there is a power vacuum. </span>
It allowed you to understand what people and what things were like back then it also allows you to feel and experience what was going on through the time period your studying.