This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Each of the following organisms is an important cause of urinary tract infections except: 
Select and explain. 
A. Klebsiella pneumonia, B. Escherichia coli, C. Bacteroides fragilis, D. Proteus mirabilis
C: Bacteroides fragilis
Answer: C: Bacteroides fragilis 
Explanation: Ans. C. Bacteroides fragilisAnaerobic bacteria are implicated in various infections including mainly puerperal sepsis & genital infections, wound infections & intra-abdominal infections.