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': 'Short bevel extends \nSelect and explain. \nA. In almost 2/3rd of enamel, B. Entire enamel + half dentin, C. All of enamel only, D. 1/3rd of enamel', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Types of Bevel', 'role': 'assistant'}]