Who is the character or voice that tells the story?

The narrator is the character or voice that conveys the story to the audience. This role is crucial because the narrator guides readers through the events, provides insights into characters' thoughts and emotions, and establishes the tone and style of the narrative. Narrators can take different forms, such as first-person, where they are a character within the story, or third-person, providing an outside perspective.

The protagonist is the main character around whom the story revolves, typically facing challenges and undergoing personal growth. The antagonist, on the other hand, represents opposition to the protagonist, often creating conflict in the story. The author is the real-life individual who writes the story, but they are not the character or voice within the narrative itself. Thus, the narrator is the correct answer because they fulfill the essential role of storytelling within the text.