You should let your emotions out. Don't hold them in that only makes it worse... Losing someone you love is very hard and i'm glad you're still here... You should try to vent to someone you trust so you can let everything out. I hope you're okay and i hope you know you're loved.
I think the answer is either
A. Why does Harry seem sad at the end of the passage.
or
D. Where will jack and Harry find work after the professor leaves?
A subject complement is either a adjective, a noun, or a pronoun that follows a linking verb.
It is a literary list to see what is aright and wrong