Answer:
D. a narrator who is biased or untrustworthy is the correct answer.
Explanation:
An unreliable narrator is one who tells the story is not entirely correct or believable because of problems with mental status and whereas reliable narrator is one tell the story with accuracy and impartial.
The unreliable narrator holds a distorted aspect of the stories that lead to an incorrect telling of the narrative.
Thus unreliable narrator is a unreliable storyteller option (D) a narrator who is biased or untrustworthy is correct.
