Final answer:
The DSM-IV delineates the core features of autism as social impairments, communication difficulties, and stereotyped behaviors. Autism Spectrum Disorder presents a range of symptoms that affect social skills and behaviors, but the severity and nature of these challenges can vary widely among individuals. The correct option is 1.
Step-by-step explanation:
The three major areas identified as the core features of autism as outlined in the DSM-IV are: 1) social, communication, and stereotyped behaviors. This encompasses challenges in social interactions, difficulties in verbal and nonverbal communication, and engagement in repetitive behaviors or interests.
Autism Spectrum Disorder (ASD) presents a variety of symptoms, including impaired social skills such as making and maintaining eye contact, reading social cues, and developing empathy. Additionally, ASD is associated with a range of behaviors like repetitive motor movements, strict adherence to certain rituals, and atypical language usage.
While some individuals with ASD may also show intellectual disability, others can be highly functional with good language skills and do not perceive themselves as having a disorder.