The three signs of an autism spectrum disorder are:

A) inadequate social skills,impaired communication,and repetitive behaviors.
B) inadequate social skills,low intelligence,and impaired communication.
C) impaired communication,unusual play,and low intelligence.
D) unusual play,low intelligence,and inadequate social skills.

Repetitive Behaviors

Actions or sequences that are repeated again and again, often seen in individuals with autism spectrum disorders as a way to self-soothe or express discomfort.

Inadequate Social Skills

The lack of proficiency in the social behaviors that are necessary for successful interpersonal interactions.

Autism Spectrum Disorder

A range of neurodevelopmental disorders characterized by social-interaction difficulties, communication challenges, and a tendency to engage in repetitive behaviors.