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: Pathology
[{'content': 'This developmental cyst does not involve bone and does not necessarily be visible in the radiograph. It causes swelling in mucobuccal fold as well as floor of the nose located near the attachment of the ala over maxilla? \nSelect and explain. \nA. Nasopalatine cyst, B. Nasoalveolar cyst, C. Gingival cyst of neonate, D. Primordial cyst', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]