All of the following are classified under Pervasive Developmental Disorders except?: (A) Asperger Syndrome, (B) Childhood Disintegrative Disorder, (C) Down Syndrome, (D) Heller's syndrome
Answer is C. Ans. C. Down SyndromePervasive developmental disorder includes:* Autistic disorder* Asperger's disorder* Childhood disintegrative disorder,* Rett syndrome* Pervasive developmental disorder not otherwise specified.