The Intensive Experimental Behavior Program Designed by Ivar Lovaas for Children

The intensive experimental behavior program designed by Ivar Lovaas for children with autism ________

A) has not proven successful.
B) has shown promise, but not as much as medications.
C) helped almost half of the children in the treatment program achieve normal intellectual functioning.
D) helped most of the parents of autistic children learn to cope better with their children.