B. Common, everyday language Is your answer
A plot is basically what's going on in a story, the main events in a story. In an action movie, there could be a murderer lurking around and the cops step up to stop him.
The plot is a murderer lurking around and the cops work to stop him.
The plot for a perfect day would probably me just being alone. I enjoy my alone time, and it'll allow me to get my own plans done, and not my plans getting ruined because of someone else's plans.
I believe the correct answer from the choices listed above is option B. The option that would best make the text suitable for a slide in a presentation would be the inclusion of very detailed statistics and examples.
Hope this answers the question. Have a nice day.