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 one of the following enteric organisms is anaerogenic and non motile? 
Select and explain. 
A. Shigella sonnei, B. Salmonella typhi, C. Proteus mirabilis, D. Klebsiella pneumonia
A: Shigella sonnei
Answer: A: Shigella sonnei 
Explanation: None