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': 'Which DNA polymerase is/are involved in repair of mammalian DNA \nSelect and explain. \nA. α, B. β, C. γ, D. ε', 'role': 'user'}, {'content': 'Answer: B \nExplanation: DNA β is involved in DNA repair in eukaryotes.', 'role': 'assistant'}]