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': 'A dental floss is applied to the distal bow of a clamp, its function is: \nSelect and explain. \nA. To facilitate the removal of the clamp, B. To prevent aspiration of clamp, C. To anchor the dam as cervically as possible, D. To stabilize the clamp', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]