Answer:
The correct answer is that we are able to discover the setting of "Trifles" through D: a narrator´s description.
Step-by-step explanation:
"Trifles" is the one-act play that was written by author Susan Glaspel and which was first presented to the world in Massachusetts, in 1916. "Trifles" narrates the process of investigation that is followed by a group of four people, who learn about the murder of Mr. Wright, and who wish to determine if his wife, Mrs. Wright, was the perpetrator. At the very beginning of the play, right before the appearance of the county attorney, who is the first to speak, there is an introduction in italics and inside brackets, where a narrator initiates all by explaining not simply the background information about the characters who will appear on the scene, but also the setting that surrounds them as the action starts to develop. This is why the answer is D.