Final answer:
The principal should reinforce the necessity of change while collaborating with the teacher to ease the transition by understanding his support needs. Option D is the correct answer.
Step-by-step explanation:
The principal's most appropriate initial response to the teacher's comments regarding the new district policy on instructional approaches would be option D, reinforcing the idea that instructional change is required of all faculty and soliciting the teacher's ideas about the kinds of support that would help him ease the transition. This approach acknowledges the teacher's experience and respects his professional autonomy while emphasizing the collective responsibility to adapt to new educational strategies. It offers a collaborative path forward by involving the teacher in the process and understanding his needs to successfully implement the new instructional changes.