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: Pathology
Recent first line management of trigeminal neuralgia: 
Select and explain. 
A. Peripheral neurectomy., B. Anticonvulsant drugs'., C. Radio-frequency ablation., D. Diagnostic regional nerve block.
B: Anticonvulsant drugs'.
Answer: B: Anticonvulsant drugs'. 
Explanation: None