Which of the following is an example of an intellectual disability?

Mental Retardation (now termed Intellectual Disability or Intellectual Developmental Disorder) is characterized by significant limitations in both intellectual functioning and adaptive behavior. Dyslexia is a learning disability affecting reading, not an intellectual disability. ADHD is a neurodevelopmental disorder affecting attention and executive functioning. Autistic spectrum disorders involve social communication deficits and restricted behaviors, but many individuals with ASD have average or above-average intelligence, so it is not classified as an intellectual disability.