Clint is a seventh-grade student in Mrs. Cook's classroom, receiving special education services for written language. He receives specialized instruction for 40 minutes each day in a small group setting (Tier 3). Currently, Mrs. Cook uses an evidence-based practice to support Clint and his classmates in developing their writing skills. This program focuses on:
A) Phonics instruction
B) Narrative therapy
C) Direct instruction
D) Behavior modification techniques