Which of the Following Are True as a Result of PL94-142

Which of the following are true as a result of PL94-142 and IDEA?

A) All students with a learning disability must be given accommodations for their disability within the least restrictive environment.
B) Individual Education Plans must address accommodations for students with identified learning disabilities.
C) Diagnostic testing has become increasingly important in identifying children with learning disabilities.
D) Cognitive abilities tests are used to help examine differences between how a student has done in school and what they are capable of doing. Such differences could be due to a learning disability.
E) All of these are true.