What indicates that a text is part of the exposition of a plot is the presentation of the characters and the setting. In this case, we can say that option D is the correct answer.
We can reach this conclusion because:
The exposition is the first element of the plot to be presented.
It has the function of presenting basic information to the reader.
This basic information is related to the characters and setting of the story, allowing the reader to situate himself with these elements.
Thus, with the presentation of the characters and the setting, the reader can understand the basis of the story and how events can develop during the plot.
It allows him to move further on and figure out why things happened the way they did. And allows him to heal because it takes the stress and gets him out of the rut, that is caused by not forgiving himself.
