From the given options, select the Figure of Speech (Poetic Device) used in the expression:

"Matthew met Michael at the mayor's moor"

Alliteration

The correct answer is: Option (4) → Alliteration

Alliteration is the repetition of the same beginning consonant sound in words that are close together. In the given sentence, the 'M' sound is repeated at the beginning of "Matthew," "met," "Michael," and "mayor's," creating an alliterative effect.

Option (1) Simile compares two things using "like" or "as" – not present here.
Option (2) Personification gives human traits to non-human things – not applicable.
Option (3) Metaphor is a direct comparison without "like" or "as" – also not used here.