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: Medicine
A 75 year old man presented with new onset of focal seizures. He has normal renal function. What is the preferred drug to be given? 
Select and explain. 
A. Oxcarbazepine, B. Levetiracetam, C. Valproate, D. Gabapentin
A: Oxcarbazepine
Answer: A: Oxcarbazepine 
Explanation: None