Final answer:
Wadsworth's action in Scene 14 involves miming the opening of a briefcase, which indicates that in the narrative, the character is 'opening the briefcase.'
Step-by-step explanation:
In Scene 14, as described, Wadsworth mimes opening the briefcase at the desk. The correct answer is that Wadsworth opens the briefcase.
The mime here signifies the action without actually performing it with a physical object, which is a common technique in theater to suggest activities using gestures or movements.
The mention of the executive, the bird in the box, and Bernice's decisive actions relate to broader themes of symbols within narratives, the weight of one's professional life, and decisive actions leading to dramatic change, respectively.