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': 'Saucering" out of small pits to improve self cleansing property is called \nSelect and explain. \nA. Saucerisation, B. Enameloplasty, C. Odontotomy, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]