3. which of the following statements is an example of a metaphor? a. the trees swayed gently as nature's dancers. b. her voice was like a thick velvet blanket. c. the horse hooves of rain landed loudly on the tin roof. d. the dog ran straight into the patch of wet cement.

How does this excerpt develop the central idea that espionage during the civil war was often carried out by untrained citizens? it enhances the reader’s understanding by explaining why training was unnecessary. it changes the reader’s perception of what information a spy was able to obtain. it explains an ordinary person’s motivation for conducting espionage against the enemy. it adds moral complexity to espionage, due to the use of secret and dangerous methods.