This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Anatomy
[{'content': 'Gas used in laproscopy is \nSelect and explain. \nA. Carbon dioxide, B. Sulphur dioxide, C. Nitrogen, D. Oxygen', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref:Bailey and love 27th edition Pg no :105', 'role': 'assistant'}]