All of the following are characteristics of the typical greek polis except
a. it contained an agora and acropolis within its fortifications.
b. each polis had a population of between 100,000 and 200,000 citizens.
c. each polis was autonomous from all other poleis.
d. the strength of the community came through cooperation.

B) Each polis had a population of between 100,000 and 200,000 citizens is the correct answer.

Explanation:

A fortified urban centre found in ancient Greece is known as Polis, they were constructed on natural acropolis or harbours and were in control of the surrounding land.They  are called polis because each policy was one city and each polis was independent from other polis in term of judicial, legal, social practise and institutions. each polis was like as state. Each state was also engaged in international affairs with other non-greek states in matters of political alliances, wars and trade. Polis was also found to have existed in Etruscan, Babylonians and Phoenician cultures. The polis emerged in the dark ages and there were more than 1,000 polis  in Greek world.

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.