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
[{'content': 'Which of the following causes least irritation of peritoneal cavity? \nSelect and explain. \nA. Bile, B. Blood, C. Pancreatic enzymes, D. Gastric juice', 'role': 'user'}, {'content': "Answer: B \nExplanation: Gastric juice, pancreatic juice, bile, urine and meconium irritate the peritoneum and leads to aseptic (or chemical) peritonitis. Ref: Maingot's 10/e, Page 637.", 'role': 'assistant'}]