What was the most significant effect of the Peloponnesian War?

AThe Greek city-states began to merge into a single Greek culture.

BSparta became the ancient world's greatest democracy.

CThe Persians greatly expanded their empire into Greece.

DAthens lost its empire and influence as a model of democracy.

Verified Answer :

Athens lost its empire and influence as a model of democracy  was the most significant effect of the Peloponnesian War.

Answer:

I CAN tell u that athens lost its empire and influence as a model of democracy is the right answer i just took the test and i thought that the answer was the greek city........ BUT that answer is wrong THE RIGHT ANSER IS D. trust me i just took the test