The answer is C. As intensity increases, time should decrease. This is because the harder you work your body, the harder it is to sustain that level of effort. Putting in all your effort for too long a time period can be overly strenuous and exert all your energy, potentially leaving you with problems post-workout.
Tell her to wait until October to discuss plan choices with you so that you can share plan benefits for the current year as well as any changes for the following year that may impact her choice
