Choose the word which is different from the rest.

The answer is D. Rhetoric.

Verse, rhyme, couplet, and stanza are all terms used in poetry. Verse is a line of poetry, rhyme is the repetition of similar sounds at the end of words, a couplet is two lines of poetry that rhyme, and a stanza is a group of lines of poetry. Rhetoric is the art of using language effectively to persuade or influence others.

Rhetoric is different from the other words in the list because it is not a specific term used in poetry. The other words are all specific terms that are used to describe different aspects of poetry.