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.
He is savage and brutal like a wild animal.
Explanation:
Answer:
D. They realize that he is the only person who is willing to participate
Explanation: Because he has a lot of determination.
Charlie is chosen for the experiment because he is a hard worker who desperately wants to learn, despite the many setbacks and limitations he encounters. The researchers know this because Ms. Kinnian vouches for him.
I believe that it is idiom because that is a commonly used expression