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: Pharmacology
Appetite is decreased by following, except: 
Select and explain. 
A. Methylphenidate, B. Olanzapine, C. Fluoxetine, D. Seraline
B: Olanzapine
Answer: B: Olanzapine 
Explanation: Olanzapine