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': "Angle's line of occlusion tells malocclusion in which direction? \nSelect and explain. \nA. Sagittal, B. Vertical, C. Transverse, D. Transverse and vertical", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]