Which of the Following Is True of a Least Restrictive

Which of the following is true of a least restrictive environment?

A) Least restrictive environment is one step up from mainstreaming.
B) Children in a least restrictive environment must be served by regular teachers rather than being placed in a special class if possible.
C) Least restrictive environment means that there is now less inclusion of exceptional children than in prior years.
D) Children who have been identified as needing additional services are now more likely to be placed in institutional settings.