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': 'What is the drug of choice for Obsessive Compulsive Disorder? \nSelect and explain. \nA. Imipramine, B. Fluoxetine, C. Benzodiazepines, D. Alprazolam', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) Fluoxetine(Ref: Harrison 17/e p2715; CMDT 2010/943; KDT 8/e p492)SSRIs are drug of choice for most of the neurotic disorders including OCD.', 'role': 'assistant'}]