This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
[{'content': 'Cyst around crown of uninterrupted tooth is \nSelect and explain. \nA. Periapical cyst, B. Radicular cyst, C. Dentigerous cyst, D. Odontogenous cyst', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dentigerous cyst is a unilocular cystic swelling arising in relation to the dental epithelium from an unerupted tooth SRB,5th edition,360 .', 'role': 'assistant'}]