Final answer:
The appointment icon typically changes to a video camera when a patient is waiting in the virtual room for a video visit, which alerts the provider to initiate the video consultation.
Step-by-step explanation:
When a patient is in the waiting room for a video visit, the appointment icon that a provider sees commonly changes to indicate the patient's status. If the platform is designed with visual cues for providers, the icon might change to a video camera to symbolize that the patient is waiting for a video consultation. This is option b) The icon changes to a video camera. This visual change serves as an intuitive indicator for healthcare providers to initiate the video visit.