This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
Microorganism motile at 25degC but not motile at 37oC is: 
Select and explain. 
A. Listeria monocytogenes, B. Campylobacter, C. Streptococcus agalactiae, D. E. coli
A: Listeria monocytogenes
Answer: A: Listeria monocytogenes 
Explanation: Listeria monocytogenes shows differential motility Motile at 25oC -tumbling motility Non motile at 37oC