Answer:
By discussing the story of a famous woman spy.
Explanation:
That’s what quizlet said
The way the author develops this central idea in the text is By discussing the story of a famous woman spy.
This refers to the main idea of a text or passage which helps to convey the purpose of the author to the audience.
With this in mind, we can see that the central idea of The Dark Game is that women were involved in espionage during the Civil War and this is developed by discussing the story of a famous woman spy.
Read more about central ideas here:
https://brainly.com/question/2684713