This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
[{'content': "Which of the following is not a glycogen storage disorder - \nSelect and explain. \nA. Lesch Nyhan syndrome, B. Me Ardle's disease, C. Pompe's disease, D. Von-Gierke's disease", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lesch Nyhan syndrome", 'role': 'assistant'}]