This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
[{'content': 'Anti - Smoking drug is? \nSelect and explain. \nA. Theophylline, B. Biclutamide, C. Salmeterol, D. Bupropion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ANSWER: (D) BupropionREF: Harrison 17th ed chapter 390Indirect repeat Pharmacology 2013 Session 2 (Different options), June 2011 (See pharmacologic interventions for tobacco addiction)', 'role': 'assistant'}]