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': 'The most common enzyme deficiency in man is ? \nSelect and explain. \nA. Glucose-6-phosphate dehydrogenase, B. Glucose-6-phosphatase, C. Hexokinase, D. Glucose-1.6-diphosphatse', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Glucose-6- PO4 dehydrogenaseGlucose 6 phosphate dehydrogenase deficiency is most common and pyruvate kinase deficiency is 2.d most common cause of enzyme deficiency related hemolytic anemiaQ.', 'role': 'assistant'}]