This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peritoneum, Subject name: Surgery
[{'content': 'Commonest site of intraperitoneal abscess is: \nSelect and explain. \nA. Lesser sac, B. Greater sac, C. Pelvis, D. Paracolic gutter', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Commonest site of intraperitoneal abscess is Pelvis. C/F - Pain in lower abdomen , chills and rigor, fever Irritates the rectum - Multiple episodes of loose stool with mucous On digital Rectal exam -Bulge on anterior wall of rectum', 'role': 'assistant'}]