One of the most important elements of Wilson's Fourteen Points was that there needs to be an international system that encourages cooperation between countries (especially in Europe) instead of competition.
Answer:
Through the criminal experience gained and the political connections established in gambling and prostitution rackets in the early 1900s, gangsters had become well prepared for the exploitation of Prohibition, which was ratified as the 18th Constitutional Amendment in 1919.
The primary causes were that Sparta feared of the growing power and influence of the Athenian Empire. The Peloponnesian war began after the Persian Wars ended in 449 BCE. This disagreement led to friction and eventually outright war. Additionally, Athens and its ambitions caused increasing instability in Greece.
Since nomadic means to always travel (go to place to place)
A is the answer