This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Substance abuse, Subject name: Psychiatry
Used for aveing smoking habit is 
Select and explain. 
A. Buspirone, B. Bupropion, C. Methadone, D. Venlafaxine
B: Bupropion
Answer: B: Bupropion 
Explanation: Bupropion (also called as amfebutamone a NDRI antidepressant )and varenicline are pharmacological agents recently used in promoting smoking cessation as adjuvant to behavioural or cognitive behaviour treatment (Ref: a sho textbook of psychiatry, Niraj Ahuja,7th edition, page no.52)