Question

Which is true about childhood disorders in the category of Pervasive Developmental Disorders (PDDs)?
a. They are characterized by marked impairments in social reciprocity, communication, and behavior abnormalities.
b. They are neurogenic in nature.
c. They may co-exist with other disabilities such as mental retardation and ADHD.
d. All of the above.
e. None of the above

Answer

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