This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
Stapedial reflex is absent in -a) Otosclerosisb) X nerve lesionc) VIII nerve lesiond) V nerve lesion 
Select and explain. 
A. a, B. bc, C. ac, D. b
C: ac
Answer: C: ac 
Explanation: None