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': 'Nasal antrostomy after Caldwell-Luc operation is done in? \nSelect and explain. \nA. Middle meatus, B. Inferior meatus, C. Superior meatus, D. Can be done in any meatus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]