Answer: D. None of the above
Step-by-step explanation:
In the above case in the question, Kimberly has done nothing wrong. What was done was simply followed the principle of demand.
In this case, she saw that she was the first cinema to show the movie and seek to maximize profit. Some there'll be an increase in demand for the movie, thus can being about an increase in price which is what happened in this case.
Therefore, what she did is not illegal, and unfair. Therefore, the best option is D.