Answer:
C) T or V
Explanation:
Mad Hatter's production possibilities frontier is shown in the attached graph. They are currently producing at point R: 10 sci-fi novels and 6 mystery novels. If they are about to publish a very popular mystery novel, their production should shift towards more mystery novels. Point where the production of mystery novels increase are T (8 sci-fi novels and 9 mystery novels) and V (5 sci-fi novels and 10 mystery novels).