What was the main reason that Athens and Sparta fought the Peloponnesian War?
A.
Sparta wanted to overthrow the Athenian oligarchy.
B.
Athens wanted to become the most powerful city-state in Greece.
C.
Sparta and its allies felt threatened by Athens’s growing power.
D.
Athens wanted to control the biggest navy in ancient Greece.
Sparta wanted to overthrow the Athenian oligarchy. Athens wanted to become the most powerful city-state in Greece. Sparta and its allies felt threatened by Athens's growing power.