The answer is:
to develop a contrast between the two sons of Madame Lebrun.
In the excerpts from "The Awakening," the author Kate Chopin makes reference to Madame Lebrun's two sons, Robert and Victor. She describes a scene in which Robert offers his mother some soup, goes into the kitchen and brings it to her with a few crackers. On the other hand, Chopin provides an account of Robert's brother, Victor, whose bad temper and stubbornness makes his mother furious.
Persuasion is defined as the act of trying to convince someone of something, or the means of convincing someone to do something. When someone lists all the reasons why you should do something, this is an example of persuasion.
Refrain is in a song not a poem so C. Refrain.
This is an instance of dramatic irony, taking into account that this figure of spech is when the implications of a situation, speech, etc, are understood by the audience but not by the characters in the play.
