This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': 'Which enzyme polymerizes Okazaki fragments? \nSelect and explain. \nA. DNA polymerase I, B. DNA polymerase II, C. DNA polymerase III, D. RNA polymerase', 'role': 'user'}, {'content': "Answer: C \nExplanation: DNA polymerase III holoenzyme is the enzyme primarily responsible for replicative DNA synthesis in E. coli. It carries out primer-initiated 5' to 3' polymerization of DNA on a single-stranded DNA template, as well as 3' to 5' exonucleolytic editing of mispaired nucleotides Ref-D.M.Vasudevan 7/e p538", 'role': 'assistant'}]