Final answer:
An integral setting is a setting that is essential to the story, significantly influencing the plot, themes, or characters, and shaping the narrative in a fundamental way. The correct option is 2.
Step-by-step explanation:
An integral setting is essential to the story, meaning it is a setting that is closely intertwined with the plot, themes, or characters, and the narrative couldn't take place the same way without it. The setting's role is not merely as a backdrop or mood enhancer, but it significantly influences the events and developments within the story.
For instance, in Gone With the Wind, the setting of Georgia during the American Civil War is central to understanding the characters' experiences and the plot's progression.
Moreover, Edgar Allan Poe's The Fall of the House of Usher demonstrates how a dark and oppressive setting can convey the mood of confinement and depression, reflecting the internal states of the characters, such as in the case of the Usher siblings and the physical state of their house. The correct option is 2.