Which sentence uses coordinating conjunctions incorrectly? A)
The doctor sighed as he started his day, but he knew he had important
work to do.

B)
I wanted to ride the Groovin' Roller Coaster, so I chickened out at the last
minute.

C) Little Jonathan wanted to go to the pool, and little Jessica immediately said
she did too.

D)
Marie knew that it hadn't rained for weeks, so she spent extra long today
watering the flowers.

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.