The authors developed this central idea by by discussing the story of a famous woman spy.
Espionage is defined as the act and practice of spying to obtain top secret information about an opponent during crisis like war.
Central idea is defined as the main point that is portrayed in a passage.
From the excerpt, Elizabeth Van Lew was a spymaster during the civil war and the author developed this central idea by discussing the story of a famous woman spy.
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