Answer:
D. Informal language
Explanation:
Presenting yourself in a lax, easy way, such as being informal, suggests to the audience that this is not a formal setting and that it's okay to be at ease, creating a friendlier space between your and your audience.
I say it's D because it is showing everything that you talked about
Hope this help
Construction paper, scissors, and paintbrushes in a pile on the table.
I think its A. They establish this section's grim mood. Hope thus helps :D