This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': '"Proofreading" is the role of \nSelect and explain. \nA. DNA primase, B. DNA Polymerase, C. Exonuclease I, D. Restriction endonuclease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: "Polymerase II (pol II) is mostly involved in proofreading and DNA repair. Polymerase I (pol I) completes chain synthesis between Okazaki fragments on the lagging strand.', 'role': 'assistant'}]