This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'A male patient presents with headache, profuse sweating and palpitations with a blood prssure of 180/120 mmHg. The drug of choice would be - \nSelect and explain. \nA. Nifedipine, B. Labetalol, C. Prazocin, D. Phenoxy benzamine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer- D. Phenoxy benzamineSymptoms of the patient suggests pheochromocytoma .The drug of choice for pheochromocytomas is phenoxybenzamine', 'role': 'assistant'}]