This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Most common site of subphrenic abscess is \nSelect and explain. \nA. Right anterior intraperitoneal space, B. Right posterior intraperitoneal space, C. Left anterior intraperitoneal space, D. Left posterior intraperitoneal space', 'role': 'user'}, {'content': "Answer: B \nExplanation: Right posterior intra-peritoneal space(Right subhepatic space/Rutherford Morison's kidney pouch) is bounded in front by the liver & gallbladder,above by the liver,behind by the right kidney & diaphragm,below by the transverse colon & hepatic flexure,to the left by foramen of Winslow & duodenum.It is the largest and deepest space of all.It is the most common site of subphrenic abscess.Causes include appendicitis,cholecystitis,post operative,perforated duodenal ulcer,intestinal obstruction. Reference:SRB' s manual of surgery,5th edition,page no:575.", 'role': 'assistant'}]