Answer:
B:plot development
C:character development
Explanation:
The elements of a narrative text are: narrator, plot, characters, space and time. In that except the narrative elements that are being presented are the development of the plot and the development of the character.
The plot is the element of the narrative responsible for following the facts. It is around him that all the events of the text unfold. In this excerpt, we can see the development of the plot, when Elisa (the flower girl), decides to look for Higgins to learn, through classes, to speak correctly. The whole plot of "My Fair Lady" develops from this.
The narrative in "My Fair Lady" is centered in a conflict lived by the characters, who are the vital elements in the construction of this type of text. Thus, we can observe the development of the characters in this excerpt showing another element of narrative.