The Framers of the Constitution gave the President the power to veto acts of Congress in order to prevent the legislative branch from becoming too powerful. Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate.
The answers are 2, 3, 4, and 6.
I never reviewed this in class but I do remember that my teacher said that Rome had a strong army. I know its not B, C, and I don't think its D.
Hopefully this helped you.
As they did not understand the biology of the disease, many people believe that the black death was a kind of divine punishment retribution for sins against god such as greed, blasphemy, heresy, fornication and worldliness. By this logic, the only way to overcome the plague was to win God‘s forgiveness.