This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic disorders, Subject name: Pediatrics
Which one of the following is not a Pyridoxine Dependent disorder 
Select and explain. 
A. Homocystinuria, B. Methyl-malonic-acidemia, C. Cystathioninuria, D. Xanthurenic aciduria
B: Methyl-malonic-acidemia
Answer: B: Methyl-malonic-acidemia 
Explanation: Methylmalonic acidemia is an autosomal recessive disorder of amino acid metabolism, involving a defect in the conversion of methylmalonyl-coenzyme A (CoA) to succinyl-CoA. Patients typically present at the age of 1 month to 1 year with neurologic manifestations, such as seizure, encephalopathy, and stroke. Reference: GHAI Essential pediatrics, 8th edition