Which sound device involves the repetition of initial consonant sounds? Onomatopoeia Assonance Alliteration Consonance

The sound device that involves the repetition of initial consonant sounds is alliteration. Alliteration is a literary device where the initial consonant sounds of words are repeated in close succession. For example, in the phrase "Peter Piper picked a peck of pickled peppers," the repetition of the initial 'p' sound is an example of alliteration.