Question

Which literary device is used in the title of oscar wildest play The Importance of being Earnest? A.hyperbole

B.oxymoron
C.simile
D.metaphor

Answer 1

The correct answer is not on your option but it's pun for plato users

Step-by-step explanation:

e. pun

Answer 2

The correct answer would be C - this is a pun, or a play on words.
The main character's name is Ernest, and it is pronounced the same way as "earnest", meaning "honest", a quality the main character of this play should have.