Final answer:
Secondary-tier interventions are best supported by Targeted strategies, which are designed for groups of students with similar needs, differing from universal or individualized strategies.
Step-by-step explanation:
Secondary-tier interventions should reflect C) Targeted strategies. These types of strategies are designed to address the needs of a specific group of students who are at risk or are showing early signs of struggling in a certain area. Unlike universal strategies which are applied to all students, or individualized strategies which are crafted for each individual student, targeted strategies are meant for groups of students with similar needs. A balanced educational approach will include problem-solving strategies that may first be presented independently and then integrated at points where they are most effective during instruction or discussion.