<h2>
Answer:</h2>
<h2>
Set the scene for the rest of the meeting.</h2>
<h3>
Explanation:</h3>
How you introduce yourself in a video presentation will set the scene for the rest of the meeting. Your first words will give the audience an instant indication of how confident you are, why you're qualified to talk on the subject, and what they can expect from the presentation.
To express each and every things in better way regarding the diagram
The answer is D, B would be correct also but I don’t agree with it making the narrator seem lonely
Answer:She can conduct preliminary research to look for repeated themes.
Explanation: