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 lingual flange area in molar region in mandibular complete denture is determined by \nSelect and explain. \nA. Mylohyoid, B. Hyoglossus, C. Genioglossus, D. Geniohyoid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]