This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthetic equipments, Subject name: Anaesthesia
[{'content': 'Mac Intosh curved blade laryngoscope is a type of \nSelect and explain. \nA. Indirect laryngoscope, B. Direct laryngoscopc, C. Bronchoscope, D. Video laryngoscope', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The Macintosh laryngoscope has a curved blade which allows exposure of the larynx by positioning the tip in the vallecula, anterior to the epiglottis, lifting it out of view. This laryngoscope is designed to lessen the difficulty of exposing the larynx to pass an endotracheal tube', 'role': 'assistant'}]