What indicates that power is temporarily unavailable to an outlet?

The correct choice indicates that the outlet is in a state where power is temporarily unavailable, which is typically signaled by an amber light. An amber light suggests that there is a warning or an issue with the power supply to the outlet, indicating it is not providing electricity at that moment.

In many systems, a green light usually shows normal operation, signaling that power is available. A red light often points to a problem or a fault that requires immediate attention. The absence of any light might indicate that the system is off or that no power is being received. However, the specific indication of power being temporarily unavailable is best represented by an amber light, prompting the necessary checks or actions.