Education of Children with Mental Retardation Has Been Plagued by the Fact

Education of children with mental retardation has been plagued by the fact that:

A) it is difficult to teach the children specific cognitive skills
B) the children lack the metacognitive capabilities needed to apply skills to new situations
C) families are usually reluctant to seek services after diagnosis
D) schools are unwilling to mainstream children with mental retardation into regular classrooms