What was the reason of the fall of the roman empire?

All of the following are true of humanism during the renaissance except a. it was a new way of looking at the world c. it focused on religion b. it caused ancient roman and greek texts to become popular d. it dealt with emotion

Choose the option that best completes this statement: the british and the continental system were blockades that prevented the united states from trading with without extreme risk to ships, goods, and sailors.

Which statement is true of both presidential and parliamentary systems of government?