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: Unknown
Acute bacterial prostatitis is caused by: 
Select and explain. 
A. E. Coli, B. Streptococcus viridans, C. Staphylococcus aureus, D. Proteus
A: E. Coli
Answer: A: E. Coli 
Explanation: Ref. Textbook of Microbiology and Immunology BY Parija. Page. 182, 261
 
Bacterial prostatitis is usually caused by E. coli or another gram-negative rod, with one of two presentations.

Acute bacterial prostatitis presents with fever and chills; prostate examination should be gentle or not performed at all, as massage may result in a wave of bacteremia.
Chronic bacterial prostatitis presents as recurrent episodes of bacterial cystitis