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: Radiology
[{'content': 'A radiolucency seen between the maxillary central incisors is most commonly due to: \nSelect and explain. \nA. Periapical cyst, B. Nasopalatine cyst, C. Globulomaxillary cyst, D. Nasoalveolar cyst', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]