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
[{'content': 'Shigella can be differentiated from E.coli by all of the following features except? \nSelect and explain. \nA. shigella does not produce gas from glucose, B. shigella dose not ferment lactose, C. shigella does not ferment mannitol, D. shigella has no flagella and is non motile', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]