Which term describes a narrative's main turning point where events reach their peak?

The term that best describes a narrative's main turning point where events reach their peak is "climax." In storytelling, the climax is crucial because it represents the moment of highest tension and drama. This is often where the protagonist faces their most significant challenge or conflict, leading to a turning point in the narrative. The climax is essential as it directly influences the direction of the story and sets the stage for the resolution of the plot.

In contrast, terms like "falling action," "exposition," and "rising action" represent different phases of the narrative structure. The falling action follows the climax and involves events that lead toward resolution, while the exposition lays the groundwork for the story by introducing characters and setting. The rising action refers to the series of events that build up to the climax, creating suspense and developing the narrative's conflict before that crucial turning point is reached. Understanding the climax's role is essential for grasping how narratives are constructed and how tension is developed throughout a story.