the school was very boring as it lacked life and was dull
Hurting others won’t fix your problems.
Putting others down won’t bring you up.
C. The sentence is incomplete because it is missing a<span> subordinate clause.
</span>A subordinate clause is <span>a clause, typically introduced by a conjunction, that forms part of and is dependent on a main clause (e.g. ‘when it rang’ in ‘she answered the phone when it rang’).</span>
B. qtd. in
Let's say you were using an article from ESPN to write about the NCAA tournament. Coach Pitino is quoted as saying, "The tournament is rigged." If you only want to use Coach Pitino's quote, you need to use the indicator "qtd. in" as part of your citation since Bilas, the author of the article you are reading, did not actually say those lines himself. Pitino is being quoted in the article by Bilas. After the quote you would write (qtd. in Bilas).
She felt nervous, because she was not used to being around all races.