At Birth,Sam Was Found to Have a Genetically-Induced Lack of an Enzyme.He

Multiple Choice

At birth,Sam was found to have a genetically-induced lack of an enzyme.He is placed on a diet,which includes not eating any foods containing Aspartame.This diet will help prevent the development of an intellectual disability.Sam most likely has which condition?

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