This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Inner Ear and Vestibular Schwannoma, Subject name: ENT
BERA is a reliable indicator in the diagnosis of: 
Select and explain. 
A. Otosclerosis, B. Vestibular neuronitis, C. Acoustic schwannoma, D. Vestibular Migraine
C: Acoustic schwannoma
Answer: C: Acoustic schwannoma 
Explanation: The best audiometric test for acoustic neuroma is BERA. The most diagnostic finding suggestive of acoustic neuroma on BERA is increased interaural latency of wave V of > 0.2 ms.