Which of the following is not true about the autistic specific disorder –: (A) Impaired communication, (B) Impaired imagination, (C) Language developmental delay, (D) Vision problems
Answer is D. Autism is characterized by Impaired social interaction, impaired communication,,and restricted repetitive & stereotyped pattern of behavior.
Restricted repetitive stereotypes pattern of behavior is due to impaired imagination.
So, Diagnostic triad of features is : -


Impaired social interaction
Impaired communication
Impaired imagination


Language development is often quite delayed.