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
Which of the following increases on Electroconvulsive Therapy? 
Select and explain. 
A. 5-hydroxy-indole-acetic acid, B. Dopamine, C. Serotonin, D. Brain derived neurotrophic factor
D: Brain derived neurotrophic factor
Answer: D: Brain derived neurotrophic factor 
Explanation: ECT causes an increase in Brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF) in the hippocampus.