MrSStates That He Has Taken Epinephrine for Years to Manage

Mr.S.states that he has taken epinephrine for years to manage his asthma and that he has taken it for prophylactic use as well.As his nurse,you inform him that prophylactic use

A) may lead to tolerance of its effects.
B) causes episodes of syncope from hypotension.
C) is used for severe asthmatics with high blood pressure.
D) can lead to few problems or drug interactions.