2.
The bolded syllables are "Once", "on", "mid", "drear", "while", "pon", "weak", and "wear".

Read the following passage from Edgar Allan Poe’s “The Raven.” Which sound device is expressed by the bolded syllables?

Once upon a midnight dreary, while I pondered,
weak and weary …


A. alliteration


B. rhythm


C. rhyme


D. refrain