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': 'In cephalometric analysis of children with malocclusion,\nThe angle ANB is frequently used in patients with severe class II malocclusions, This angle is \nSelect and explain. \nA. Large, B. Small, C. Normal, D. Negative', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]