Answer:
Option B.
Step-by-step explanation:
The Peloponnesian War, is the right answer.
Peloponnesian War was a war persisted between Athens and Sparta, the most leading city-states of ancient Greece. The struggle engulfed practically the whole Greek world, and it was suitably observed by Thucydides. His contemporaneous chronicle of it is deemed to be among the most exquisite products in the world.