Which of the following statements about exceptional student education is true?

A. A 504 plan is similar to an IEP, but while an IEP provides for specialized instruction for students in grades K-12, a 504 plan can serve students at both the K-12 and college levels.
B. All exceptionalities appear early and are usually diagnosed by doctors before a child enters the school system, not by teachers or parents in later years.
C. Children who often fall under the ESE classification always fall into one of the four types of special needs: physical, developmental, behavior, or academic.
D. Exceptional student education provides guidance and protection for students with disabilities but excludes protections for students who are identified as gifted.