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
72-y ear-olo gentleman with normal renal functions presents with new onset focal seizures. Which of the following is the best drug to manage the patient? 
Select and explain. 
A. Sodium valproate, B. Oxcarbazepine, C. Leviteracetam, D. Pregabalin
B: Oxcarbazepine
Answer: B: Oxcarbazepine 
Explanation: Answer: b. Oxcarbazepine (Ref: Harrison 194, p2552. 18/e pc 1)3262)Among the options provided, oxcarbazepine is the best drug to manage this old patient with normal renal functions presents with new onset focal seizures