Answer:
The correct answers are:
Helmer thinks that Nora's worry about him is related to his reputation and is a sign of her love for him, while the audience knows that it is the risk she took to get a loan that shows her love.
Nora thinks that Krogstad has written in the letter that she is having an affair, and is afraid that Helmer will find out, while the audience knows that Krogstad has written about the loan.
Step-by-step explanation:
These are the correct answers because they both represent instances of dramatic irony, where the audience knows something that the characters on stage do not. In the first answer, Helmer believes that Nora's worry is about his reputation, when in fact it is about the loan she took out to save his life. The audience knows this, but Helmer does not, leading to a dramatic irony. In the second answer, Nora believes that Krogstad has written about her affair, when in fact he has written about the loan. The audience knows this, but Nora does not, leading to a dramatic irony.