question: Q:A patient presents with periods of severe headaches and flushing however every time they have come to the physician they have not experienced any symptoms. The only abnormal finding is a blood pressure of 175 mmHg/100 mmHg. It is determined that the optimal treatment for this patient is surgical. Prior to surgery which of the following noncompetitive inhibitors should be administered?? 
  {'A': 'Atropine', 'B': 'Isoproterenol', 'C': 'Propranolol', 'D': 'Phentolamine', 'E': 'Phenoxybenzamine'},