Correct Response: B. Adjusting instruction for individual students according to their responses to intervention is a key principle of the Multi-Tiered Systems of Support (MTSS) model of instruction. The teacher should monitor the progress of the individual students in the Tier Two intervention group using an appropriate, evidence-based assessment, and then adjust instruction for individual students based on their responses to instruction. For example, some of the students might need more intensive instruction, while others may demonstrate mastery after a few lessons. Option A is incorrect because providing reading materials at the most accessible level will not provide opportunities for students to advance in their learning and to apply new skills. Option C is incorrect because instructional materials that are aligned with students' interests may not be aligned with their reading strengths and/or learning goals. Option D is incorrect because following a scripted program verbatim from beginning to end implies that the teacher is not attending to students' responses to the intervention and their changing strengths and needs.