Answer:
work hard OR you will fail
I would have to say C.) Shot open. because it let's the reader immediately know she is scared. Therefore giving you the tone of the passage.
In two different settings, there may be different trials to be faced or different rules. Depending on where the character is will affect the way they act. For example, if a character was at a fancy restaurant they may act differently than they might've if they were at a crime scene. I hope this is helpful!!
:)