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
Which of the following are a non-motile bacteria 
Select and explain. 
A. Helicobacter pylori, B. Klebsiella pneumoniae, C. Vibrio Cholerae, D. E.Coli
B: Klebsiella pneumoniae
Answer: B: Klebsiella pneumoniae 
Explanation: All the bacteria in the list except Klebsiella pneumoniae have flagella (or endoflagella) which gives them the property of motility.