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
[{'content': 'Von Gierke&;s disease is due to the deficiency of \nSelect and explain. \nA. Gluc-6 phosphatase, B. Glue-1 phosphatase, C. Branching enzyme, D. Mycophosphorylase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Glycogen storage disease type I (GSD I) or von Gierke&;s disease, is the most common of the glycogen storage diseases. This genetic disease results from deficiency of the enzyme glucose-6-phosphatase and has an incidence in the American population of approximately 1 in 100,000 bihs.Ref: DM Vasudevan, 7th edition, page no: 128', 'role': 'assistant'}]