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: Microbiology
The Generation time in coliform bacilli is 
Select and explain. 
A. 2 seconds, B. 20 seconds, C. 20 minutes, D. 2 hours
B: 20 seconds
Answer: B: 20 seconds 
Explanation: Population doubling time or the generation time of

E.coli is 20 mins
MTB is 20 hours
M. leprae is 20 days.