What is a requirement for the entry variation in move elements according to Group B?

In the context of move elements for synchro skating, the requirement for the entry variation in Group B is that it must begin with an allowed entry forward move and be held for a sufficient duration. This criterion ensures that the skaters demonstrate control and fluidity in their movements from the very start, establishing a solid foundation for the maneuver.

By starting with an allowed entry forward move, skaters can showcase their technical skill and artistry, while the requirement to hold the position long enough emphasizes the importance of balance and stability. This aspect is critical as it not only highlights the technical proficiency of the skaters but also contributes to the overall flow and aesthetic quality of the performance.

Other options may describe various ways to perform moves, but they do not align with the specific requirements outlined for entry variations in Group B, which focus on the importance of a proper and controlled initiation of the move.