Answer:
should be metaphor or personification, probably personification.
Explanation:
- alliteration is similar consonant sounds in close proximity so that's not it
- personification implies that human characteristics are given to something non-human. without context, I am assuming that something is being personified to have jaws and a mouth.
- similes commonly include words like "as" or "like" so this isn't a simile I presume
- metaphor is an indirect comparison between two unrelated things without using connecting words such as like or as so this is possible but I believe it is personification
