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
Most pathognomic in pelvic abscess is - 
Select and explain. 
A. Constipation, B. Mucopurulent discharge, C. Loose stool, D. Bleeding
B: Mucopurulent discharge
Answer: B: Mucopurulent discharge 
Explanation: None