<u>The correct answer is: It demonstrates that Nora is considering leaving her children.</u> Nora reveals to the nurse that she fears that her children will forget her if she leaves definitively. Nora believes that her secret will be revealed and she will be expelled from her home, her family and society. Nora did not have to worry about taking care of the children because she had the help of the nurse and more servants.
It makes readers think about how long Ellery usually takes to solve a case.
Explanation:
The insistence of one person being worried and looking at the clock is that the investigators are running late and it could be due to a variety of reasons.
They could be in grave danger or there is an imminent threat of something else happening around them as they focus on this case.
The other person tells him smugly that the detective still has 28 minutes to solve the case.
This sentence insinuates that the detective usually only takes that much time to solve the case, showing the speaker's confidence in his abilities.
