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': "Curved blade of laryngoscope as shown is called as \nSelect and explain. \nA. McCoy blade, B. Macintosh blade, C. Miller's blade, D. Wisconsin blade", 'role': 'user'}, {'content': 'Answer: B \nExplanation: ANSWER: (B) Macintosh blade', 'role': 'assistant'}]