What must skaters do if a position is changed after a feature?

The correct response is that skaters must hold the position for two seconds after a feature if a position is changed. This requirement emphasizes the importance of maintaining clarity and showcasing the transition between elements in synchro skating. Holding a position demonstrates control and ensures that the judges can clearly observe the execution and quality of the feature, allowing them to assess the team's synchronization and precision effectively.

In synchro skating, transitions and changes between positions need to be well-defined to uphold the artistic impression and technical merit of the performance. Holding the new position allows the team to visually establish the change, contributing to the overall flow and style of the routine. This enhances the judges' ability to evaluate the performance accurately and can impact the scoring.

While other options might suggest alternative actions after a feature, they do not align with the established technical requirements and judging criteria in synchro skating. Therefore, holding the position for the stipulated time is vital for maintaining the integrity and quality of the performance.