This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bronchopulmonary Segments, Embryonic veins, Subject name: Anatomy
[{'content': 'A 72-year-old patient vomited and then aspirated some of the vomitus while under anesthesia. On bronchoscopic examination, paially digested food is observed blocking the origin of the right superior lobar bronchus. Which of the following groups of bronchopulmonary segments will be affected by this obstruction? \nSelect and explain. \nA. Superior, medial, lateral, medial basal, B. Apical, anterior, posterior, C. Posterior, anterior, superior, lateral, D. Apical, lateral, medial, lateral basal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The superior lobar bronchus is one of the divisions of the right main bronchus. This bronchus branches into apical, anterior, and posterior teiary bronchi. LOBE- Right upper lobe SEGMENTS: Apical segment Anterior segment Posterior segment', 'role': 'assistant'}]