In a Block configuration for the Block Configuration Feature, which requirement must be met?

In a Block configuration for the Block Configuration Feature, the requirement that only one block must be maintained is essential. This requirement emphasizes the integrity of the block formation, which is foundational to the performance and evaluation of synchro skating routines. A single, cohesive block allows skaters to demonstrate collaboration and synchronization while executing their movements, which is critical for the aesthetic and technical aspects of the performance. Maintaining just one block ensures that all skaters are aligned and working together, showcasing their skills and unity as a team.

The other options suggest variations that either do not align with the definition of a Block configuration or could compromise the performance. Allowing multiple blocks or shapes would complicate the assessment of synchronization and could lead to confusing interpretations of the routine. Stationary blocks are not a requirement, as movement is often integral to the dynamic nature of synchro skating, as long as the block formation remains intact. Thus, the requirement of maintaining only one block is what truly defines and supports the judging criteria for this configuration.