What is the root word of unsinkable?

Match each literary device to its definition. pun the use of humor and exaggeration to mock or criticize people's impractical thoughts and practices irony the use of words in a way that conveys the opposite of what they mean paradox the use of a word with more than one possible meaning with the intention of creating humor satire ideas or concepts that seem absurd or contradictory but are nevertheless true arrowboth arrowboth arrowboth arrowboth

Retell the main events of this story as jerry might tell them to his best friend when he returns from vacation or to his own son later in life. in the story through the tunnel

Which sentence from the article best supports the statement above