A 10-Year-Old Boy Has Suffered from Slowly Progressing Ataxia (Poor

A 10-year-old boy has suffered from slowly progressing ataxia (poor motor coordination) since the age of 5.A blood test shows abnormal elevations of alanine and lactic acid levels after an oral glucose load.Partial deficiency of which of the following enzymes or transporters is the most likely cause of the boy's condition?

A) Carnitine-palmitoyl transferase 1.
B) Glucose transporter 4.
C) Pyruvate dehydrogenase.
D) Aldolase B.
E) Glyceraldehyde-3-phosphate dehydrogenase.