This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
Niemann-Pick disease is due to deficiency of 
Select and explain. 
A. Hexosaminidase, B. Sphingomyelinase, C. Galactokinase, D. Glucosidase
B: Sphingomyelinase
Answer: B: Sphingomyelinase 
Explanation: It is a lipid storage disease, due to deficiency of sphingomyelinase. Leads to the accumulation of sphingomyelin.Ref: DM Vasudevan, 7th edition, page no: 193