This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Obstructive sleep apnoea syndrome \nSelect and explain. \nA. Associated with sudden cardiac death, B. Road traffic accidents, C. Bulimia nervosa, D. Anorexia nervosa', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Associated with sudden cardiac death > In severe and prolonged cases there is | in pulmonary prssure that are transmitted to right side of heart - this results in CHF - significantly lower levels of nitrate - CVS complications.', 'role': 'assistant'}]