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': 'Y axis is used to analyse \nSelect and explain. \nA. Maxillary growth, B. Mandibular growth, C. Both maxillary and mandibular growth, D. To design appliance', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]