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
Cranial nerve which is involved earliest in acoustic neuroma is 
Select and explain. 
A. 5, B. 7, C. 9, D. 10
B: 7
Answer: B: 7 
Explanation: The earliest cranial nerve to be involved is V nerve causing reduced corneal sensitivity. Ref: Dhingra 6th edition pg. 112