Infantile autism is characterized by -a) Impaired visionb) Impaired Neurobehavioural developmentc) Impaired folate leveld) A socio-economic hazarde) Parenting: (A) bd, (B) d, (C) ab, (D) ac
Answer is A. Autism is a neurological disorder.                                                                 
It is more common in low socio-economic groups.