Which was an outcome of the peloponnesian war? a. athens and sparta were so destabilized by the war that persia was finally able to conquer all of greece. b. as a result of its population loss, sparta was unable to turn its victory into any real leadership role in greece. c. athens was so weakened by the war that despite its victory, it could not hold a coalition of city-states together. d. with sparta's triumph, the greek city-states were united briefly until spartan oppression splintered greece.