Why Are Newborns Screened for PKU at Birth

Why are newborns screened for PKU at birth?

A) Pinch response, Kicking response, and Urine output are all indicators of newborn health.
B) It's a disease that can be prevented with immediate surgery.
C) PKU babies have a disease that requires they be fed phenylalanine supplements to prevent brain damage.
D) It's an easily identifiable disease that causes brain damage but is easily prevented if the individual follows a prescribed diet.
E) Prion Kreutzfalt Underweight syndrome can be prevented if treated immediately, but otherwise it causes brain damage.