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: Radiology
[{'content': 'Mc Gregor line and Trapnell lines are seen in? \nSelect and explain. \nA. PNS View, B. PA View, C. SMV View, D. Lateral View', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]