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: Unknown
[{'content': 'Plunging ranula refers to a mucocoele that has penetrated which muscle? \nSelect and explain. \nA. Sternohyoid, B. Stylohyoid, C. Omohyoid, D. Mylohyoid', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]