This passage reads like a script for stage or film.
The medium that would best interpret this passage would be film.
1) Camera focus in on Mrs Peters' eyes slowly turn to meet Mrs Hale's eyes.
2) Mrs Hales' eyes moving to spot the hidden box.
3) Sound of a knob turning with camera showing closeup of knob turning
Panning in & out on eyes and knob is best achieved through use of a camera in film.
Answer: Character vs self.
Explanation: In the given excerpt from "Yearbook" we can see the description of a girl that thinks of herself as an individual and also is afraid to be open and share with other people, because her best friend moved to another city and left her, because of these reasons she spends her time alone. This is the description of a conflict of the character vs herself, because the issues she have are within her, not with the society or another character.
Definitely A. B, C, and D have nothing to do with finding the main idea