Answer:
It explains an ordinary person's motivation for conducting espionage against the enemy
Step-by-step explanation:
According to the excerpt from The Dark Game, Elizabeth was an ordinary, untrained citizen who felt betrayed when Virginia seceded from the Union in 1861 L because she believed in one country. She determined to do whatever it took to repair the torn apart nation.
This excerpt develops the central idea that espionage during the Civil War was often carried out by untrained citizens because it explains an ordinary person's motivation for conducting espionage against the enemy.