This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Which of the following nerve stimulation may be considered for treatment of ADHD? 
Select and explain. 
A. Vagal Nerve, B. Facial Nerve, C. Trigeminal Nerve, D. Trochlear Nerve
C: Trigeminal Nerve
Answer: C: Trigeminal Nerve 
Explanation: Ans. C. Trigeminal nerveExternal Trigeminal Nerve Stimulation (eTNS) System is indicated for patients ages 7 to 12 years old who are not currently taking prescription ADHD medication and is the first non-drug treatment for ADHD granted marketing authorization by the FDA.