The rising action leads the highest point of tension at the climax, the writer would use emotions like worry, fear, anxiety , and stress on the part of the reader and the character in the novel
I have written a similar essay. Except it was multiple pieces completed by two different artists. I would say start with the intro, then write the similarities in the second paragraph, the differences in the second paragraph, and the conclusion. If you need more paragraphs to reach requirements then do this:
1. Intro: give brief background to artwork and artist and write thesis
2. Similarities in technique
3. Differences in technique
4. Similarities in emotion conveyed
5. Differences in emotion conveyed
6. Conclusion: summarize comparison and rephrase thesis.
*no idea if this answers your question*
Answer: I would say the best answer choice in my opinion would be letter 
or “so that the audience can understand the motivations of the characters in the play.”
Explanation: Hope this helps! Have a fantastic day! <3
