D.
All of these were problems the Roman Empire was facing in the late second and third centuries.
Answer:
i think the sentences 3 will right .....
Ballistic Missiles were not invented until 1936 so the answer is A
Answer:
Europeans traded in slaves because this was a free source of labor. They did not need to do the strenuous work by making their slaves do it for them, so it was on a high demand
