What is the significance of using B-roll footage in the candidate's video?

Using B-roll footage in a candidate's video significantly enhances storytelling. B-roll serves as supplementary video content that can visually support the main narrative. It provides context, adds depth, and engages viewers by illustrating the points being made, which can lead to a more effective and compelling presentation. By showcasing relevant visuals, B-roll can evoke emotions, clarify ideas, and maintain audience interest throughout the video, making the narrative more impactful and memorable.

The other options do not capture the main purpose of B-roll effectively. While filling time might be a tangential benefit, it does not reflect the primary intention behind incorporating such footage. Adding background music could enhance the atmosphere of a video but is not the primary role of B-roll footage, which focuses on visual storytelling. Focusing specifically on audio elements neglects the visual aspect that B-roll is meant to support, making it essential for an engaging presentation rather than audio enhancement.