World war ii represents a turning point in modern world history because it:
o
a. convinced countries around the world to isolate themselves from
their neighbors.
o
b. led to the fall of european empires and the rise of new global
superpowers.
o
c. ended the trend toward globalization that had started before
world war i.
o
d. allowed european leaders to tighten their grip on their colonial
territories

B is correct ...both France and UK were superpowers in decline already before WW II but it was after WW II when the post-war consequences pushed them to decolonization. Global power moved to USSR and USA.

Explanation: during XVIII and XIX centuries there is still rivalry between France and UK but both powers are already in decline (UK started losing its power already during the 2nd half of the 19th century. Russia was too underdeveloped and USA still busy with their own territory and integrity. USA entered global stage with Spanish-American War and after that Great War. Entering in the WW II (Pearl Harbor 1941) make USA world superpower. UK and France are loosing their ground and today there is a post-imperial trauma.

Ancient Greece Polis

Explanation:

A polis (plural: poleis) was the typical structure of a community in the ancient Greek world. A polis consisted of an urban centre, often fortified and with a sacred centre built on a natural acropolis or harbour, which controlled a surrounding territory (chora) of land.