This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': 'Therapy of choice for sleep-apnea syndrome is \nSelect and explain. \nA. Invasive ventilation, B. Non - Invasive ventilation, C. Oxygen inhalation, D. Use of respiratory stimulants', 'role': 'user'}, {'content': "Answer: B \nExplanation: Harrison's principles of internal medicine 17th edition. * Majority of patients need to use continuous positive airway pressure(CPAP) delivered by a nasal mask every night to splint the upper airway open.", 'role': 'assistant'}]