Short Answer 
Stage directions are essential in scripts, guiding character behavior and emotions, which enriches the reader’s understanding of the narrative. Torvald’s reaction to Nora’s spending, highlighted by specific stage directions, reveals his character and the tension in their relationship, enhancing comprehension of the story’s themes.
Step 1: Understanding Stage Directions
Stage directions are specific instructions included in a script that indicate how characters should behave, their movements, and their expressions. These directions play a crucial role in conveying the emotional undertones of the text. In this context, they help the reader visualize the scene and grasp the dynamics between characters, enhancing overall comprehension.
Step 2: Analyzing Torvald’s Reaction
When the stage directions note that Torvald opens his door after learning about Nora’s spending, it signals a significant moment in the narrative. This action portrays his aggressive expression and body language. The specifics of his reaction give readers insight into his character and the tense dynamics of their relationship, which is vital for understanding the unfolding events.
Step 3: Recognizing the Impact on Understanding
Stage directions not only provide physical cues but also enhance the reader’s interpretation of the narrative. By revealing how Torvald reacts to Nora’s actions, these directions promote a deeper understanding of the emotional stakes involved. This enables readers to connect more profoundly with the characters and the themes of the story, solidifying the significance of option A as the correct answer.