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: Pathology
[{'content': "Deficiency of enzyme hexosaminidase, α subunit causes - \nSelect and explain. \nA. Tay-Sach's disease, B. Hurler syndrome, C. Fabry disease, D. Pompe disease", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]