A story arc is the chronological construction of plot in a narrative, outlining the progression of events and character development. It typically includes a beginning, middle, and end, guiding the audience through the story's conflict and resolution. Common elements of a story arc include exposition, rising action, climax, falling action, and denouement. Story arcs can vary in complexity, from simple tales to intricate narratives with multiple subplots. They are essential in various forms of storytelling, including literature, film, and theater, helping to engage the audience and create emotional investment in the characters and their journeys.