This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: ENT
[{'content': 'Microlaryngoscopy was started by \nSelect and explain. \nA. Bruce Benjamin, B. Kleinsasser, C. Chevlier Jackson, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b (Kleinsasser). (Textbook of ENT by Maqbool, 7th ed., 407)# Microlaryngoscopy = Kleinsasser# Tracheostomy tube = Chevlier Jackson# Bronchoscope = Negus, Jackson', 'role': 'assistant'}]