Final answer:
The fourth-grade teacher, Mrs. Reed, selects library books based on the independent reading level of her students.
Step-by-step explanation:
In this scenario, the fourth-grade teacher, Mrs. Reed, plans to send library books home for her students to read. To select books, she considers each student's independent reading level. The independent reading level represents the level at which a student can read and comprehend a text on their own, without assistance. Mrs. Reed chooses books that match each student's reading abilities to promote independent reading and ensure they can understand and enjoy the books they take home.