A and D
I mean... Eventually some kings left the Papal authority. However, remember the crusades? It united nearly everyone in Europe. Some to the point of making new states.
I hope I'm right!
C. Mass evacuations of non-Latin were carried out by the roman army.
See this is where the Romans were smart about their government. Yes they did conquer a lot of people, but they gave the conquered people freedom. Not only were they granted citizenship, but the roads that the Romans built were very useful for trading.
The practice of enslaving people is contrary to Christian principles
The question is asking with what kind of document or action "the president can quickly respond to economic, social, or political needs". The best way to the president solve problems quickly, is to use a executive order. So, the answer for the question is letter b) signing executive orders. <span>Is important to remember that the president can't signing legislation without the support of the legislative power.</span>