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: Anatomy
[{'content': 'Dangerous area of face ? \nSelect and explain. \nA. Upper lip middle 1/3", B. Lower lip middle 1/3rd, C. Lower lip lateral pa, D. Periorbital area', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Upper lip middle 1/3''", 'role': 'assistant'}]