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': 'Unilocular radiolucency is seen in all except \nSelect and explain. \nA. Ameloblastoma, B. Primordial cyst, C. Giant cell granuloma, D. Calcifying epithelial odontogenic tumour', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]