This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamin, Subject name: Pharmacology
Pyridoxine is used in treatment of - 
Select and explain. 
A. Galactosemia, B. Phenylketonuria, C. Propionicacidemia, D. Homocystinuria
D: Homocystinuria
Answer: D: Homocystinuria 
Explanation: Ans. is 'd' i.e., HomocystinuriaInborn error of metabolism and Treatment1] AlkaptonuriaVitamin C, Folic acid2] HomocystinuriaPyridoxine + Folic acid3] CystinuriaAlkalization of urine + d-Penicillamine, Captopril4] Hartnup diseaseNicotinamide5] Multiple carboxylase deficiencyBiotin6] Methyl malonic academiaVitamin B127] HyperoxaluriaPyridoxine8] TyrosinemiaNTBC, Liver Transplantation