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: Anatomy
[{'content': 'A posteriorly perforating ulcer in the pyloric antrum of the stomach is likely to produce initial localized peritonitis or abscess formation in the: \nSelect and explain. \nA. Greater sac, B. Left subhepatic and hepatorenal spaces (pouch of Morrison), C. Omental bursa, D. Right subphrenic space', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Omental Bursa', 'role': 'assistant'}]