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': 'Anterior bite plane incorporated in orthodontic appliances functions to: \nSelect and explain. \nA. Disocclude posterior teeth, B. Disocclude anterior teeth, C. Prevent maxillary posterior teeth from supra- erupting, D. Primarily prevent mandibular anterior teeth from supraeruption', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]