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: Medicine
[{'content': 'Niemann - Pick disease is due to deficiency of which of the following enzymes? \nSelect and explain. \nA. Acid Sphingomyelinase, B. Hexosaminidase A, C. Ceramidase, D. Arylsulfatase B', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Deficient enzyme Disease Acid Sphingomyelinase Niemann pick disease Hexosaminidase A Tay-sachs disease Ceramidase Farber disease Arylsulfatase B Maroteaux - Lamy syndrome', 'role': 'assistant'}]