It can’t be a smilie because nothing is being compared using like or as. It can’t be onomatopoeia because the following words is not used in that quotation, POW, WOW BOOM etc. It can’t be metaphor because nothing is being compared without using like or as, and it can’t be rhyme because nothing in here is being rhymed so it has to be Assonance.
I believe it is A. Hope it helps!
I loved it. I think it was a great story.
