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': "'Torque' in orthodontics refers to: \nSelect and explain. \nA. The change in mesiodistal inclination of teeth, B. The change in labiolingual inclination of teeth, C. The rotation of teeth, D. None of the above", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Clinical heights of the crowns, contact areas, their tip (mesio distal angulations) and torque (labiolingual inclination) contribute to the aesthetics of the smile.\xa0\nTherefore torque refer to the labiolingual inclination of the teeth.\nReference: Orthodontics: Diagnosis and Management of Malocclusion and Dentofacial Deformities 3rd O P Kharbanda, pdf no 789', 'role': 'assistant'}]