Which of the following was a reason the united states entered world war i
a. to maintain freedom of the seas
b. to break up the colonial empires of the allies
c. to overthrow the czarist government of russia
d. to keep but in america from being attacked by germany

polisit can also mean a body of citizens. in modern historiography, polis is normally used to indicate the ancient greek city-states, like classical athens and its contemporaries, and thus is often translated as "city-state". the body of citizens came to be the most important meaning of the term polis in ancient greece.