This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': "Sandhoff's disease is due to absence of which enzyme? \nSelect and explain. \nA. Beta–hexosaminidase, B. Beta–glucuronidase, C. Aryl sulphatase, D. Alpha galactosidase", 'role': 'user'}, {'content': "Answer: A \nExplanation: Beta-hexosaminidase\xa0\n\nSandhoff's disease is due to deficiency of Beta Hexosaminidase.", 'role': 'assistant'}]