Answer: b
Explanation:
Athens did not crumble as expected, winning a string of naval victories against Sparta, which sought monetary and weapons support from the Persian Empire. Under the Spartan general Lysander, the war raged for another decade. By in 405 B.C. Lysander decimated the Athenian fleet in battle and then held Athens under siege, forcing it to surrender to Sparta in 404 B.C.