Answer:
C.
Her reaction makes readers wonder how Nora knows Krogstad.
Explanation:
A character's point of view can be determined by reading the text closely. In the play, Nora reacts in an alarmed manner each time she sees or hears about Krogstad, which suggests that she knows him. This creates an element of suspense in the play, and the readers are curious to know how the two are acquainted.
