Pun is the correct answer because homonyms have multiple meanings and so do puns
If you are looking for a definition, it is EXTINCT because extinct means that animal or plant no longer is living and they have died out.
If you are looking for an actual animal, a woolly mammoth is an extinct animal.
HOPE THIS HELPS!!(:
Despite his nerves, he was ready for his first interview; he had thought through each potential question.