What defines a "plot arc"?

A plot arc is best defined by a visual representation of events and emotional responses throughout a narrative. This concept illustrates how the story unfolds, often showing not just the sequence of events but also how tension and emotion fluctuate over time. It typically includes key story elements such as exposition, rising action, climax, falling action, and resolution, allowing readers or viewers to understand the emotional journey of the characters and the overall trajectory of the story.

While the other options touch on aspects of storytelling, they do not encapsulate the essence of a plot arc. A list of characters provides identification of who is involved but lacks the dynamic progression of the story. A timeline of events presents a sequence but does not capture the emotional depth and shifts that occur. A summary of the setting gives context but does not address the narrative flow or character development essential to a plot arc. Thus, the correct answer highlights the importance of visuals in understanding both events and emotional dynamics, which are crucial for grasping the full impact of a narrative.