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: Pediatrics
[{'content': "Which glycogen storage disease doesn't affect muscles ? \nSelect and explain. \nA. Type 1, B. Type 2, C. Type 3, D. Type 4", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Liver glycogenosis\xa0\xa0\xa0\xa0 --->\xa0\xa0\xa0\xa0\xa0 Type I, Type Ma, Mb, IV, VI, IX.\nMuscle glycogenosis\xa0\xa0\xa0\xa0\xa0\xa0\xa0--->\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Type II, V, VII.\nIn Ma & IV muscle weakness and hypotonia are also seen', 'role': 'assistant'}]