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: Surgery
In "Three glass test" shreds are present in 1stglass only. The likely diagnosis would be: 
Select and explain. 
A. Cystitis, B. Renal pathology, C. Anterior urethritis, D. Prostatitis
C: Anterior urethritis
Answer: C: Anterior urethritis 
Explanation: None