Answer:
E. The Pax Romana allowed for peace amongst the people in the empire. & D. Conquered areas areas were allowed to operate representative democracies.
Step-by-step explanation:
How did the Romans obtain and control such a vast empire? In its time, the Roman Empire was the largest empire the world had ever seen. The fact that the Romans were able to control and obtain an empire of this size was due to plenty of factors, but the main ones are the Roman army, the Roman roads, Pax Romana, the borders of the empire, and the benefits of the barbarians who became ruled by the empire. On their own, these factors wouldn’t do much at all, but such a combination brought great success.