If a coach designates no Liberos in the first set, what can she do for the second set?

When a coach designates a Libero for a set, that decision generally applies only to that particular set. If there were no Liberos designated in the first set, the coach is then free to choose a Libero for the second set without any restrictions on which player can be selected.

Choosing option C, which suggests designating player #6 as the Libero for the second set, is correct because the rules allow for a Libero to be designated at the beginning of each set. The coach can select any player eligible to play the Libero position according to format regulations, and there is no prior commitment from the first set that would prevent this choice.

In this scenario, the other options do not align with the rules that govern the Libero designation. For instance, stating that the coach cannot designate any Liberos would overlook the flexibility provided for each set. Similarly, while the coach can designate a different player as Libero (which seems reasonable), the importance here is that they can designate any player, not just "a different player." Lastly, though it's advisable for the coach to inform the referee of the designation for the sake of clarity, it’s not an absolute requirement tied to the designation itself. Thus, choosing player #6