Answer :
Answer:
Autism is a lifelong, nonprogressive neurological disorder typically appearing before the age of three years
Explanation:
The word “autism” means a developmental disability significantly affecting verbal and non-vAutism spectrum disorder (ASD) is a complex developmental condition that involves persistent challenges in social interaction, speech and nonverbal communication, and restricted/repetitive behaviors. The effects of ASD and the severity of symptoms are different in each person.erbal communication and social interaction.