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
Intolerance to loud sound, nerve affected is 
Select and explain. 
A. 5th nerve, B. 7th nerve, C. 10th nerve, D. None
B: 7th nerve
Answer: B: 7th nerve 
Explanation: Clinical features of the 7th nerve palsy: Eyeball turns up and out Saliva dribbles Tears flow down Pain in the ear Noise intolerance Loss of taste Ref: Dhingra 7e pg 104.