Answer: C) Grave men, near death.
Step-by-step explanation: A pun is a play on words, it is used when a word has more than one meaning or when there are words that sound alike. Puns are often used to cause a humorous effect. In the given passage from "Do Not Go Gentle into That Good Night" we can see an example of a pun in the phrase: Grave men, near death, because the word "Grave" can have two meanings, the imperative of the verb grave which means "dig" or the adjective "grave" which means severe.