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
[{'content': "fay Sach's disease is an inborn error of metabolism due to deficiency \nSelect and explain. \nA. Hexosaminidase-A, B. Aryl sulfatase-A, C. a-galactosidase, D. Galactocerebrosidase", 'role': 'user'}, {'content': "Answer: A \nExplanation: (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", 'role': 'assistant'}]