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

"All the world is a stage"

Metaphor

The correct answer is: Option (4) → Metaphor

A Metaphor directly equates one thing to another, implying that the first thing is the second, without using "like" or "as." In this expression, "the world" is directly presented as "a stage," suggesting that life within the world shares qualities with a theatrical performance (e.g., people playing roles, events unfolding like scenes).

Option (1) Personification involves giving human qualities to non-human things – not applicable here.

Option (2) Simile compares two things using "like" or "as" – which is not used in this expression.

Option (3) Alliteration is the repetition of initial consonant sounds – not present in this phrase.