Which of the following is a characteristic of video conferencing?

Video conferencing is designed to facilitate real-time communication between participants who may be located in different geographical locations. One of its key characteristics is the use of both video and audio components. This dual functionality allows participants to see and hear each other, effectively simulating an in-person meeting experience, which enhances interaction and provides a more engaging environment. This capability is crucial for discussions, presentations, and collaboration, as it allows for non-verbal cues and immediate feedback, which are vital for effective communication.

The other options describe features or limitations that do not align with the purpose or functionality of video conferencing. For example, requiring a physical setting contradicts the very nature of remote communication that video conferencing offers. Similarly, it is not primarily for broadcasting television shows, as that is a different type of media communication. Lastly, video conferencing is intended to promote participant interaction, which is why it incorporates both audio and visual elements, thereby allowing for active engagement among users.