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 extension of anterior lingual border of mandibular denture is limited by? \nSelect and explain. \nA. Mylohyoid, B. Geniohyoid, C. Genioglossus, D. Digastric', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]