When discussing story grammar, what does the main character refer to?

In the context of story grammar, the main character is referred to as the protagonist of the story. The protagonist is central to the narrative and usually faces challenges or conflicts that drive the plot forward. Understanding the role of the protagonist is crucial as they often undergo significant development and their actions and decisions significantly impact the storyline's progression. This focus on the protagonist allows readers to engage more deeply with the text, as they typically resonate with the character's experiences and growth. The other options either refer to roles that do not provide the same level of focus in the narrative or describe elements that support the protagonist but do not hold the primary position in the story's structure.