How are the words insincere and uncaring useful context clues in determining the meaning of the word earnest

Hey there! :D

Insincere and uncaring are antonyms of the word earnest. Since the sentence is stating how Melissa is unlike other candidates, we can conclude that these are:

"A" They are antonyms of the word.

I hope this helps!
~kaikers

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.