B is the correct answer.
In looking for common ground, it is likely that both the Principal and the teacher could agree that students deserve the best resources and conditions to promote learning.
They might then disagree on what appropriate conditions look like but they can both agree that students deserve the best resources and conditions.
The answer is cognitive restructuring. This is also one of
the therapy that is needed for Amy. It is a psychotherapeutic development of knowledge
to identify and maladaptive thoughts or dispute irrational known as cognitive
distortions, such as all-or-nothing thinking (splitting), magical thinking,
over-generalization, magnification, and emotional reasoning.