Pete Is an Adult with an Intellectual Disability, Which Has

Multiple Choice

Pete is an adult with an intellectual disability, which has become more severe than it was when he was a young child. Physically, he has a thin face, large ears, and appears smaller than average, although he was larger than average as a child. Regarding his adaptive behaviors, his daily living skills are better than his language and social skills. Pete most likely has the hereditary condition known as

A) Down syndrome.
B) fragile X syndrome.
C) phenylketonuria (PKU) .
D) cretinism.