What must the background color of the minimum number display be?

The correct answer is that the background color of the minimum number display must be either the alliance color or a color that provides sufficient contrast to ensure visibility. This requirement is in place to ensure that the displayed information can be easily read from a distance during competition. The use of the alliance colors helps team members and audiences quickly identify their team, while having a contrasting color ensures that the display stands out clearly against varying backgrounds and lighting conditions.

This is important for quick and efficient game play, where every second counts, and clear visibility of the minimum number display can influence strategic decisions by the teams involved. Ensuring compliance with this color specification contributes to a fair and transparent competition environment. Other options, such as using a neutral color or any bright color, do not necessarily meet these visibility and identification criteria, which is why they do not align with the requirements.