Answer:
Collective Noun
Explanation:
If you were referring to "The staff" then this would be a collective noun.
A collective noun refers to a group of things or people, or a group that consist of multiple members that are taken as a whole. Other examples of collective nouns would be words like, faculty, organization, flock, troupe, collection.
It is any noun that represents a group of more than one member.
It's going to be setting. Although it was using past pretenses like "was" it isn't a backstory, it wasn't describing the characters or any event. It was only describing the room, the setting. Hope this helps :).
This is not a question. Their needs to be questions