This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
In obsessive - compulsive disorder, which is not given: 
Select and explain. 
A. Cloimipramine, B. Haloperidol, C. Sealine, D. Cabamazepine
B: Haloperidol
Answer: B: Haloperidol 
Explanation: B. i.e. Haloperido