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
Not a selective serotonin reuptake inhibitor: 
Select and explain. 
A. Flouxetine, B. Fluvoxamine, C. Buspirone, D. Citalopram
C: Buspirone
Answer: C: Buspirone 
Explanation: Buspirone