Which of the following would work best as the title of a explanatory essay?

A. How did the greeks select leaders?

B. The real reason Greece defeated Persia?

C. The influence of greek mythology on world religions?

D. Greece: History's greatest Civilization

The answer is A: how did the greeks select leaders?

the that would be best as the title of an explanatory essay is : A. How the greeks select leaders? An explanatory essay is made to create an in depth analysis and explanation toward a specific topic. The title in option A, indicate that the writer has chosen a topic that he want to discuss and intend to create an explanation about how it happened.