From the given options, select the correct figure of speech (poetic device) used in the following expression-

The wise fool impressed the king

Oxymoron

The correct answer is Option (A) → Oxymoron

The phrase "wise fool" combines contradictory terms—'wise' implies intelligence and good judgment, while 'fool' suggests lack of sense. This pairing of opposites in one expression is a typical example of an oxymoron.

Option (B) → Simile: A simile compares two different things using "like" or "as." There is no such comparison in the sentence.

Option (C) → Personification: Personification gives human qualities to non-human objects or ideas. No non-human subject is being described with human traits here.

Option (D) → Metaphor: A metaphor is a direct comparison where one thing is said to be another. This sentence contains no such comparison.