<span>D. Courtesy yields profits to the impecunious as well as to the wealthy.
This sentence would be the most persuasive because they are </span><span>high school graduates from a working-class neighborhood and they would love to hear about gaining profits and become wealthy....
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I wished to see the caveman, what he had to offer.
This reflected on his past adventures in the seas, and following up on his battle with the cyclops. It is shown that he has grown more prideful as he goes along with the journey, he had proved himself that he can conquer anything without thinking of the right way anymore.
Hope this helps! :D