What is the purpose of a sudden bump of light during a show?

The purpose of a sudden bump of light during a show is to indicate a change of scene or cue. This lighting technique is commonly used in theatre to visually mark transitions, helping to guide the audience's attention from one part of the performance to another. It serves as a clear signal for both the performers and the audience, ensuring that the progression of the story is smooth and comprehensible.

When a sudden bump of light occurs, it can effectively denote not just the geographic or atmospheric change on stage but also shifts in time or mood, aligning the visual aspect of the performance with the narrative flow. This technique enhances the audience's understanding of the unfolding drama and contributes to the overall experience by making transitions more pronounced. Other choices, while they may contain elements of truth, do not encapsulate the primary function of this specific lighting cue as directly and efficiently as the correct answer.