This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Pathology
fay Sach's disease is an inborn error of metabolism due to deficiency 
Select and explain. 
A. Hexosaminidase-A, B. Aryl sulfatase-A, C. a-galactosidase, D. Galactocerebrosidase
A: Hexosaminidase-A
Answer: A: Hexosaminidase-A 
Explanation: (A) Hexosaminidase-A SPHINGOLIPIDOSESDiseaseEnzyme Deficiency* Tay-sachs diseaseHexosaminidase A* Fabry's diseasea-Galactosidase* Metachromatic leukodystrophyArylsulfatase A* Krabbe's diseaseb-Galactosidase* Gaucher's diseaseb-Glucosidase* Niemann-Pick diseaseSphingomyelinase* Farber's diseaseCeramidase