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 root of maxillary lateral incisors if curved is usually in which direction? \nSelect and explain. \nA. Distal, B. Mesial, C. Facial, D. Palatal', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]