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': 'Enameloplasty is \nSelect and explain. \nA. Filling of enamel fissures with amalgam, B. Elimination of shallow enamel fissures, C. Is same as prophylactic odontomy, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]