Options are: A). 's done the dog stretches and performs various tricks in a way he doesn't really like.; B). finishes, the dog walks across the hardwood floor as she helps clean and groom his teeth.; C). 's finished, the dog walks around her holding onto her legs.; D). is done she waves to the camera and the video ends.;Choose from options above and answer: What most naturally follows?

She sits down on the floor and begins to alternate between brushing her own teeth and brushing the dog's teeth. when she
Answer:
D).