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: ENT
[{'content': 'In Dacryocystorhinostomy opening is made into \nSelect and explain. \nA. Superior meatus, B. Middle meatus, C. Inferior meatus, D. Medial wall of nose', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]