This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipids, Subject name: Biochemistry
Sphingomyelinase deficiency is a feature of - 
Select and explain. 
A. Niemann pick disease, B. Tay Sach's disease, C. Krabbe's disease, D. Fabry's disease
A: Niemann pick disease
Answer: A: Niemann pick disease 
Explanation: Ans. is 'a' i.e., Niemann pick diseaseLipid storage disordersDisorderEnzyme defectGaucher's diseaseb glucosidaseNiemann Pick diseaseSphingomyelinaseFabry's diseasea galactosidaseGM1 gangliosidosisb galactosidaseGM2 gangliosidosisHexosaminidase ASandhoff s diseaseHexosaminidase A and BKrabbe's diseaseGalactosyl ceramidaseMetachromatic leukodystrophyAryl Sulfatase AFarber's diseaseCeramidaseWolman's diseaseAcid lipase