Option C, "So, Rainsford is not justified because there is no proof he acted in self-defense"
In the excerpt from Gary Soto’s short story "Like Mexicans.” The complex narrative structure used in the excerpt is an example of establishing a work of fiction that is based on nonfiction. For the reason that the author assumes responsibility for the truth or accuracy of the events, people, or information presented thus being noted as Nonfiction.
It's a source citation. The name Breenan is the author, and 142 is probably the page this information was found on in Breenan's writing.
Modern language association