C because a verb is something to describe an action, state, or occurrence.
It is C. A presentation of how paper is recycled on campuses across the United States.
It seems that you have already filled the correct pronoun in the blank provided. Yes, the correct answer to complete this sentence is the pronoun "this". The pronoun "this" is an example of a demonstrative pronoun. Other demonstrative pronouns also include these, those, and that. Hope this answer helps.
Answer: Its asking what is something that is holding him back (such as a broken leg or being not intelligent)
A play or drama. Could be a musical but it's more likely that your definition is a play/drama.