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: Surgery
[{'content': 'Ranula is a condition which occur in: \nSelect and explain. \nA. Pre auricular area, B. Medial angle of orbit, C. Nasolabial angle, D. Floor of the mouth', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]