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: Dental
[{'content': 'Desmodont is another name for: \nSelect and explain. \nA. The tooth with one wall pocket, B. Tooth with three walled pocket, C. Periodontal ligament, D. Dehiscence', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]