Answer :
Final answer:
The stage direction emphasizing the rocker where Mrs. Wright sat creates a tense mood, reinforcing the somber and uneasy atmosphere of the play.
Explanation:
The underlined stage direction in the excerpt from Trifles affects the mood of the scene by focusing on the rocker where Mrs. Wright sat. This emphasis on the rocker is significant; it creates a tense mood by reminding all present of Mrs. Wright's eerie calmness as she discussed her dead husband. Unlike objects that bring warmth or calmness, the rocker in this context contributes to the play's atmosphere of unease. Mrs. Wright's demeanor and the setting, where a crime has occurred, underpin the tension. The other characters' attention to the rocker also serves to illuminate important themes in the play, such as the expected roles of women and the isolation Mrs. Wright felt. It is a poignant symbol that indicates something disturbingly tranquil about Mrs. Wright's state in the wake of a violent event.