What age group is served by Part B of IDEA?

Part B of the Individuals with Disabilities Education Act (IDEA) specifically targets children aged 3 to 21. This part of the law ensures that eligible children receive Free Appropriate Public Education (FAPE) designed to meet their unique needs and prepare them for further education, employment, and independent living. It emphasizes the importance of IEPs (Individualized Education Programs), which outline tailored educational goals and services for children within this age range.

In contrast, the other options either cover age groups outside the scope of Part B or do not accurately represent the population served. Children aged birth to 3 are actually served under Part C of IDEA, which focuses on early intervention services. Infants only would not fit as they are covered entirely under Part C, while saying all school-aged children is too broad and does not reflect the specific age range defined in Part B. Therefore, the correct answer highlights the specific age demographic that IDEA aims to support under Part B.