This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacotherapy in psychiatry, Subject name: Psychiatry
Best drug therapy for paranoid schizophrenia in a thin built 21 - years old young male would be 
Select and explain. 
A. Chlorpromazine, B. Risperidone, C. Olanzapine, D. Quetiapine
C: Olanzapine
Answer: C: Olanzapine 
Explanation: The clue in this question is antipsychotic that can be used in lean patients, antipsychotic olanzapine is a well researched drug that has lesser discontinuation * Ref.Kaplon and sadock, synopsis of psychiatry, 11 th edition, pg no. 1053