You did not provide the excerpt, however, imagery is using words to create images by describing every aspect of some entity. A metaphor is a type of figurative language that compares one thing to another, such as calling a man a lion because of his bravery. You can use this logic to find the correct answer in your excerpt.
Um how can we help you if we dont have the whole text sir?
His janitor because all of them suck :)
Explain (in the best way possible) what you do with children, how long you've wanted to work with kids, why do you want to do this. things like that.