Which pair are core features of autism spectrum disorder?

• A. Motor delays and seizures
• B. Social communication deficits and restricted, repetitive behaviors
• C. Sleep problems and feeding issues
• D. Language development only

Answer: (B)

Autism spectrum disorder is defined by two defining features: persistent difficulties with social communication and social interaction across contexts, and restricted, repetitive patterns of behavior, interests, or activities. These two domains capture the essential ways autism presents: challenges in sharing and understanding social cues, and a pattern of repetitive actions or fixed interests. Other issues like motor delays, seizures, sleep problems, or feeding difficulties can occur but are not the defining criteria. Language development can be affected, but some people with autism have typical language while still showing the social-communication and restricted-behavior patterns. Therefore, pairing social communication deficits with restricted, repetitive behaviors best reflects the defining features.