Informal means slang or figurative syntax and so on therefore the answer would be D
first of all
and because.
I'm not sure, but I'm 99% positive let me know if you get it right!
Figurative language such as; Alliteration, Allusion, Foreshadowing, Hyperbole, Irony, and metaphors. The list goes on but all in all, Figurative language, hope this helps :)!
Answer:
The sweater isn't hers but she is forced by her teacher to wear it.
Explanation: