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What role did geography play in the development of Athens as a dominant power among the city-states of ancient Greece?

A. Its location along the Aegean Sea helped Athens establish a powerful navy and booming trade.

B. The mountainous terrain helped the Athenians defend their city from foreign invasion.

C. Its location along the Mediterranean Sea helped Athens develop a prosperous economy based on agriculture.

D. The mountainous terrain helped the Athenians invade other city-states and establish colonies.