Final answer:
The best statement for how the school bell is used in the narrative is 'Creating a sense of urgency', supported by the detail of students hurriedly packing their bags, indicating an immediate reaction that advances the plot.
Step-by-step explanation:
Understanding the role of the school bell in a narrative requires a close look at the plot and the techniques used by the author to manipulate the narrative. The correct statement for completing the sentence regarding how the author uses the school bell to advance the plot is 'Creating a sense of urgency'. This is supported by a detail from the passage that best exemplifies the author's technique, 'Students hurriedly packed their bags as the bell rang'. This action suggests a response to the bell that pushes the story forward, reflecting the urgent mood and escalating the tension towards the climax of the story.
The ringing bell could serve various purposes in the narrative, such as establishing the setting, but the provided detail specifically aligns with the idea of prompting immediate action, hence advancing the plot. In the context of narrative writing, the utilization of sound elements like a school bell can evoke a particular response from characters and thereby serve as a vehicle to propel the plot, contributing to the rising action or leading up to a significant event.