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
In acoustic neuroma, cranial nerve to be involved earliest is 
Select and explain. 
A. 5, B. 7, C. 9, D. 10
A: 5
Answer: A: 5 
Explanation: The earliest cranial nerve to be involved is V nerve causing reduced corneal sensitivity. Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 125