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': 'All are the advantages of Winged clamps in Rubber dam except \nSelect and explain. \nA. Good stability, B. Simultaneous placement of dam , clamp and frame, C. Easy determination of MC and WL radiographs, D. Provides extra bucco-lingual separation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]