When writing a cover letter, it is important the introduction
a. describe your educational background
b. detail your work experience
c. explain how you heard about the position
d. provide your contact information

The answer is "he was bad enough in all conscience, but the devil himself could not temp him to turn slave-trader. satirical is a synonym for sarcastic. so when the author says that tom walker could not be tempted by the devil he does not literally mean "the devil" but he means that he is too morally upright to become a slave-trader.