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': 'Long bevel envolves: \nSelect and explain. \nA. Entire enamel., B. Entire enamel and dentine., C. Entire enamel and half dentin., D. Usually not recommended.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]