You Are Examining an Infant Brought to Your Office Due

You are examining an infant brought to your office due to the onset of seizures. The parents report that their baby has also exhibited a progressive lack of energy, feeding difficulties, hypotonia, abnormal jerking movements, and difficulty breathing. These symptoms are suggestive of a defect in the processesof neurotransmission and thus, are most likely due to which of the following disorders?

A) alkaptonuria
B) glycine decarboxylase deficiency (GCC deficiency)
C) Hartnup disorder
D) maple syrup urine disease
E) PKU