A nurse is providing care for an 18-month-old toddler in the primary care provider's office. The primary care provider has finished performing the autism screening assessment (M-CHAT-R/F) on the child and noted a negative screening. Which of the following is true regarding this result?

The child has autism spectrum disorder. The child should be referred to an early intervention program.

The child may still have autism spectrum disorder. The child should be screened again at 24 months old.

The child does not have autism spectrum disorder and further assessment is not warranted.

The child may or may not have autism spectrum disorder. The child needs to be rescreened with the correct tool for the age of the child.