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
Which of the following Antiepileptic acts by opening Potassium channel? 
Select and explain. 
A. Ezogabine, B. Felbamate, C. Lacosamide, D. Gabapentin
A: Ezogabine
Answer: A: Ezogabine 
Explanation: None