A sentence that includes an independent clause and at least one dependent clause is called a complex sentence.
B cause thers verbs in that senttse and non bof the other ons a ver
I'd say that the theme of this story encourages us that anyone can be important. Not just lawmakers or rich people or even extroverts, but anyone, whether you're a shy artist or an outgoing sporty-type. Some variation on that is probably what you're looking for, I shouldn't do your work for you! :)
I would say it is C, if not possibly B.