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
Curved blade of laryngoscope as shown is called as 
Select and explain. 
A. McCoy blade, B. Macintosh blade, C. Miller's blade, D. Wisconsin blade
B: Macintosh blade
Answer: B: Macintosh blade 
Explanation: ANSWER: (B) Macintosh blade