Which factor was a key reason for the economic success of the Greek city-states

Which factor was a key reason for the economic success of the Greek city-states?

A. new farming techniques

B. geographical isolation

C. war and conquest

D. a booming system of trade

D. a booming system of trade

Explanation:

One major reason for the economic success of the Greek city-states was their successful trade with other civilization.

Athens and Sparta engaged in trade with other countries, buying and selling which helped them to become economically secure and successful.

c)an idealized view of nature. hope this