This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breathing Systems, Subject name: Anaesthesia
[{'content': 'Supreme LMA characteristic is - \nSelect and explain. \nA. Has no bite block, B. Used in infants, C. High pressure, low volume, D. Has built in drain tube', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Has built in drain tubeo LMA supreme is one of the most advanced laryngeal mask airway (LMA).o It has features of usual LMA with additional Built-in drain tube and a bite block.o It has high volume / low pressure cuff which generates higher seal pressure,o It also provides a conduit for active suctioning of stomach,o It can be used in infants as well as in adults.", 'role': 'assistant'}]