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
A male patient presents with headache, profuse sweating and palpitations with a blood prssure of 180/120 mmHg. The drug of choice would be - 
Select and explain. 
A. Nifedipine, B. Labetalol, C. Prazocin, D. Phenoxy benzamine
D: Phenoxy benzamine
Answer: D: Phenoxy benzamine 
Explanation: Answer- D. Phenoxy benzamineSymptoms of the patient suggests pheochromocytoma .The drug of choice for pheochromocytomas is phenoxybenzamine