A speech delivered by a character alone on stage to allow people to know what he or she is thinking or feeling. aPersonification bSimile cSoliloquy dPun

The correct answer to the question is c. Soliloquy.

A soliloquy is a dramatic device used in literature, particularly in plays, where a character speaks their thoughts aloud while alone on stage. This technique allows the audience to gain insight into the character's internal conflicts, emotions, and motivations. It differs from other literary devices like personification, simile, or pun, which focus on figurative language rather than revealing a character's inner thoughts. One of the most famous examples of a soliloquy is Hamlet's "To be, or not to be" speech in William Shakespeare's play Hamlet, where the character contemplates existence and mortality.