An unreliable narrator is the narrator of a story whose point of view is compromised, and thus the way the individual describes events unfolding in the story, cannot be trusted as an honest account of what is actually happening. It is a form of first-person narrative style. The unreliability of the narrator can be attributed to their age, their mental instability, or the fact that the narrator might be the culprit of a crime. One of the main hallmarks of the unreliable narrator is a plot twist occurring by the end of the story.
Examples of stories that use this type of narration are The Adventures of Huckleberry Finn, Lolita, Life of Pi, and many of Edgar Allen Poe's and Agatha Christie's stories.
The right answer for the question that is being asked and shown above is that: "D. Collector." My brother, Randy, is a comic book collector. the appositive in the sentence is that of D. Collector<span> </span>