Which stage direction from part one of Trifles most adds to the suspenseful tone?

The direction that most builds suspense is “MRS. PETERS (starts to speak, glances up, where footsteps are heard in the room above. In a low voice.)” The unexpected footsteps suggest that someone may be nearby, and Mrs. Peters’s glance upward and lowered voice show the women’s unease. Together, these details make the audience wonder who is above them and what might happen next.

AI-written and checked against the verified answer.