This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Substance Related and Addictive Disorders, Subject name: Psychiatry
Which of the following is an alternative to methadone for maintenance treatment of opiate dependence? 
Select and explain. 
A. Diazepam, B. Chloridazepoxide, C. Buprenorphine, D. Dextropropoxyphene
C: Buprenorphine
Answer: C: Buprenorphine 
Explanation: MAINTENANCE TREATMENT OF OPIOID DEPENDENCE: Opioid Substitution Therapy Methadone Buprenorphine Levomethadyl (LAAM) Opioid Antagonists Naltrexone (oral) Naloxone (injectible, sho acting)