Beth is about to start a synchronous online presentation. She has three light sources, is sitting at a desk, and has positioned herself in front of a light gray wall. She is wearing a navy blouse, a simple necklace, and three metal bracelets. She will be using the webcam on her laptop for video and the computer microphone for audio. What error has Beth made?

She has used too many light sources.

She is using the webcam on her laptop for video.

She is sitting in front of a gray wall.

She is wearing bracelets that are likely to cause noise.