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': 'Galactosaemia commonly is due to deficiency of- \nSelect and explain. \nA. Galactose-1 phosphate uridyl transferase, B. Galactose-1 phosphatase, C. Glucose-1 phosphatase, D. Glucose-6 phosphatase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Galactose-1-Phosphate uridyl transferase', 'role': 'assistant'}]