<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .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 mmHg100 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,  <response>: This is a question about treating a patient with paroxysmal hypertension, likely caused by a pheochromocytoma. The key clues are the episodic severe headaches and flushing along with elevated blood pressure, and the recommendation for surgical treatment. The goal of pre-operative medication is to control blood pressure and prevent hypertensive crisis during surgery. Since this is caused by excess catecholamine epinephrinenorepinephrine release, we need a medication that will block the effects of those hormones at the receptor level. Phenoxybenzamine is an alpha blocker and non-competitiveirreversible inhibitor of alpha adrenergic receptors. This makes it an ideal choice to control blood pressure in this patient before surgery to remove the pheochromocytoma.E: Phenoxybenzamine 