This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Large doses of pyridoxine are of value in some cases of- 
Select and explain. 
A. Phenylketonuria, B. Homocystinuria, C. Nonketotic hyperglycemia, D. Ketotic hyperglycemia
B: Homocystinuria
Answer: B: Homocystinuria 
Explanation: Ans. is `b' i.e., HomocystinuriaInborn error of Metabolism and treatmentAlkaptonuria- Vitamin C, NitisinoneHomocystinuria- Pyridoxine + Folic acidCystinuria- Alkalization of urine + d-Penicillamine, captopril,Hanup disease- NicotinamideMultiple carboxylase deficiency- BiotinMethyl malonic acidemia- Vit B12Hyperoxaluria- PyridoxineTyrosinemia- NTBC, Liver transplantation