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: Medicine
Urinary tract infection by a gram +ve organism in a young sexually active female is due to - 
Select and explain. 
A. B. Subtilis, B. E. coli, C. Staph. Saprophyticus, D. Strept. pyogenos
C: Staph. Saprophyticus
Answer: C: Staph. Saprophyticus 
Explanation: None