Answer:
The answer is to show that the tension is rising between the two characters
You have provided textual evidence for your first point, now provide it for your second and third points. Then conclude your analysis by briefly summarizing your main points and reiterate that it is conclusively a formal essay.
A. It is an independent clause because it forms a complete thought and has a subject and a verb.
I believe it is C, not totally up to par on my English clauses but I believe it is...