What is the purpose of the least restrictive environment provision of IDEA?

What is the purpose of the least restrictive environment provision of IDEA?
 
  a. To ensure that students with similar disabilities are educated together.
  b. To ensure that children with disabilities are educated with nondisabled children whenever possible.
  c. To ensure that every disabled student is educated at least part-time in regular classrooms.
  d. To ensure that disabled students receive instruction from a variety of teachers.

Ques. 2

Which of the following statements conforms to the objective writing method recommended by Gronlund?
 
  a. accepts diverse opinions
  b. appreciates classical music
  c. correctly defines 90 percent of the words on a vocabulary list
  d. demonstrates the ability to add and subtract negative numbers