Answer:
Interjected normally means that someone is either yelling or they quickly interrupted a conversation with their own input.
Explanation:
The only preposition in the options available to you is of, so the correct answer is C.
A) and B) are conjunctions.
D) is an adverb.
Answer:
They feel others do not appreciate what they provide
Explanation:
I do not know how to explain it, Sorry.