Answer:
D. Pun.
Step-by-step explanation:
A pun is a play on words by using them in a different way. This literary device allows the writer to use a word in different forms by implying a different meaning.
A pun is used more often in a humorous way when a word is used to mean multiple things. This play on words allows the listener to feel funny yet still also gives a sense of correctness in what has been said.
For example, when someone says "a happy life depends on a liver". So, liver here may mean the human liver, the organ, or simply someone who lives for every moment.
Thus, the correct answer is option D.