Sorry I don’t quite get the question. Could you rephrase it?
For this question, I would say the selection's main pattern of organization is c. contrast. This can be proven true with context words/phrases. The phrase<em> on the other hand</em> is a common transition word when contrasting two mediums.
Krogstad is going to try to take his job back from Mrs. Linde, and the audience knows it, but Mrs. Linde does not know that this will happen.
