Unexpected Treasure

SETTING: A dimly lit room. Present are Arthur, an old nanny, and a treasure chest.

Scene 1
ARTHUR: I never expected to find this! I can't wait to see what's inside the treasure chest. (Hears some footsteps.) Ugh! Not her again!
NANNY: (thud, thud, thud, bangs on the door) Arthur! Open this up right now.
ARTHUR: What is it now? I'm fine. Can't you just leave me alone?
NANNY: Arthur, I said open this door! (Bangs loudly.)
ARTHUR: (Quickly pushes the chest below his bed and opens the door) What?
NANNY: (Tries to peep in.) Let me in and show me what you've been up to!
4
How do the stage directions add to the scene above?
A.
They explain how the setting changes in the drama.
B.
They help resolve the conflict in the scene.
C.
They show the actions that take place in the scene.
D.
They describe the emotions of the characters.