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
Calpurnia acts differently among the Finches.
It’s based on the perspective of the dog and how he views the world hence why everything else is so scary and not normal compared to his owners who are regular and don’t see what courage does. (I don’t think it’s based on a true story but some episodes relate to the real world)
