Answer:
D.supplements the story.
Explanation:
The author is just stating these events that took place thoughout the story.
<span>Most human communication cannot be understood outside of the context in which it occurs</span>
The answer to your question is


The author is giving details and purpose to this event and is inviting people to come to attend it. They even tell you how you can get to the event and about the designated "drop zones".
I hope this helps you!