Answer:
The interaction between Helmer and Nora advances the plot because Helmer thinks that Nora is afraid his reputation will suffer, heightening the suspense about her real secret.
Step-by-step explanation:
The question is incomplete since it does not offer the options to answer, here are the options:
A) Helmer decides he might need to use strength against Krogstad to make him leave his position at the bank.
B) Helmer realizes that Nora is right about Krogstad, which will keep her secret safe from him later in the play.
C) Helmer thinks that Nora is afraid his reputation will suffer, heightening the suspense about her real secret.
D) Helmer agrees with Nora that it is too late and that he has made a mistake with Krogstad, which creates conflict.
This scene from the play " A Doll's House" by Henrik Ibsen and Thomas Ostermeier shows how Helmer as a chivalrous and venerable man does what he considers is necessary to protect Nora and he assumes due to her horror at knowing the content of the letter that she is afraid of what may come.