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
Tianeptine acts by - 
Select and explain. 
A. MAO inhibitor, B. Serotonin uptake inhibitor, C. Serotonin uptake enhancer, D. 5-HT agonist
C: Serotonin uptake enhancer
Answer: C: Serotonin uptake enhancer 
Explanation: Mechanism of action of important atypical antipsychotics 

Tianeptine & amineptine   → Serotonin uptake enhancer
Trazodone                           → α-blocking & weak 5-HT antagonistic action.
Venalafaxine & Duloxetine → serotonin and noradrenaline reuptake inhibitor (SNRI).