This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Amino acid Metabolism, Subject name: Pediatrics
All of the following can be used in the treatment of hyperammonemia EXCEPT? 
Select and explain. 
A. Sodium benzoate, B. L-carnitine, C. L-arginine, D. Phenylacetate
B: L-carnitine
Answer: B: L-carnitine 
Explanation: Treatment of hyperammonemia: Phenylacetate Sodium benzoate L-arginine Dialysis may be required if plasma ammonia levels remain persistently high. L-Carnitine is used in Methylmalonic acidemia Propionic acidemia lsovaleric acidemia