This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'The replicative E. coli can multiply and produce daughter cells in? \nSelect and explain. \nA. 20 minutes, B. 24 hours, C. 20 days, D. 4 weeks', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a (20 minutes). (Ref. Textbook of Microbiology by Ananthnarayan, 7th/275)BacteriaGeneration time1Lepra bacillus12-13 days (8-42 days)2Tubercle bacillus14 hours3Coliform bacillus20 minutes', 'role': 'assistant'}]