Final answer:
A narrator is the voice or person that tells a story, which could be a character in the narrative or an external, often omniscient, voice. The perspective and knowledge of the narrator influence how the story is perceived and understood by the reader.
Step-by-step explanation:
D. The person or voice that tells a story.
The narrator is the person or entity through which a story is communicated to the reader. This could be a character within the story, known as a character narrator, or an external voice with no active role in the plot, often referred to as an omniscient narrator. The narrator's perspective is crucial as it shapes the point of view from which the story unfolds. In the first person point of view, the narrator is a character in the story, denoted by the use of 'I' or 'we,' providing a personal and subjective angle.
Conversely, the third person point of view offers a more objective or omniscient perspective, where the narrator is not part of the story but rather telling about the characters and events from an outside vantage point. Understanding who the narrator is enriches one's comprehension of the story's depth and the reliability of the events being recounted, as the narrator could potentially be unreliable.