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': 'Suffix A for rubber dam denotes \nSelect and explain. \nA. Winged camp, B. Wingless camp, C. Deciduous teeth, D. Partially erupting teeth', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]