Well an interjection is an exclamation so definitely not d or a in my opinion i say C
I am pretty sure the answer is D.
Answer:
Because it makes clutter in the hallways. It gives people the chance to skip their next class. fights breakout in the hallways.
C) Since there was a flicker fire in the cabin, I wonder if she [the glimmering girl] was actually there?
Answer:
It is trying to ask "What dominant (biggest or strongest) trait is causing more problems."
A dominant trait is the trait that is a big part of who you are and affects your life heavily.
So think of the most dominant trait the main character has, and reflect on how much it affects their life and/or makes it hard for them.
I hope this helps.