Final answer:
The speaker should time themselves, greet the audience, and read from the presentation slides.
Step-by-step explanation:
The best response the speaker could give in this situation is to time themselves in rehearsal, greet members of the audience before they begin, and read from their presentation slides to stay on track. By timing themselves in rehearsal, the speaker can ensure they are staying within the allotted time for their presentation. Greeting members of the audience before beginning helps create a positive connection with the audience. Reading from the presentation slides helps the speaker stay organized and stay on topic.