The power and the influence of the Greek city-states was increased around the Aegean by . the ownership of hundreds of thousands of slaves the religious leaders the shift towards democracy Sparta military training trade and colonization

trade and colonization

Explanation:

The influence or expansion of the Greek city-states around the Aegean is known as the Aegean civilization.

Aegean civilization was increased by trade and colonization of Greek city-states. Sea Trade was a fundamental aspect of the ancient Greek as they had few natural resources and that helped them in territorial expansion.

The Greek population started Colonization or large-scale population movements to get resources and trading helped them to form colonies in other regions such as around Aegean.

Hence, the correct answer is "trade and colonization".

debating and finalizing the detail of the policy