This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Nerve involved in hyperacusis 
Select and explain. 
A. Facial nerve, B. Glossopharyngeal, C. Vagus, D. Hypoglossal
A: Facial nerve
Answer: A: Facial nerve 
Explanation: Paralysis of stapedius muscle which is supplied by 7th cranial nerve causes hyperacusis or phonophobia Ref: Dhingra 7e pg 510.