Which Treatment Would You Use for a Heroin Addict, and Why

Which treatment would you use for a heroin addict, and why?

A) Bromocriptine; it is a partial agonist that can mimic heroin enough to prevent withdrawal while acting like an antagonist to prevent relapse and craving
B) Bromocriptine; it is an antagonist that can mimic heroin enough to prevent withdrawal while acting like an agonist to prevent relapse and craving
C) Buprenorphine; it is a partial agonist that can mimic heroin enough to prevent withdrawal while acting like an antagonist to prevent relapse and craving
D) Buprenorphine; it is an antagonist that can mimic heroin enough to prevent withdrawal while acting like an agonist to prevent relapse and craving