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: Physiology
[{'content': 'Normal intraabdominal pressure is ? \nSelect and explain. \nA. 0 - 8mmHg, B. 10 - 15mmHg, C. 15 - 20mmHg, D. 20 - 26mmHg', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is'a'i.e., 0 - 8 mmHgNormal intra-abdominal pressure is 0-6 mmHg.", 'role': 'assistant'}]