Answer:
I'm not sure, but either B or D
Explanation:
The Christian church could have survived without the Roman Empire, but it helped boost its popularity. D. Because it was one of the first Democraticish types of government that are still used today.
Enforces all laws created by the legislative branch
Slaves in Rome might include prisoners of war, sailors captured and sold by pirates, or slaves bought outside Roman territory. In hard times, it was not uncommon for desperate Roman citizens to raise money by selling their children into slavery.
D. He united the Mongol tribes and became known as the "ruler of all men". Scary dude, to be honest!
Hope this helped.
