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': 'The curvature of the cervical line of most teeth will be approximately \nSelect and explain. \nA. 2 mm less distally than mesially, B. 1 mm less distally than mesially, C. 2 mm less Lingually than buccally, D. 1 mm Less lingually than buccally', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]