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
[{'content': 'Stapedial reflex is mediated by: \nSelect and explain. \nA. V and VII nerves, B. V and VIII nerves, C. VII and VI nerves, D. VII and VIII nerves', 'role': 'user'}, {'content': 'Answer: D \nExplanation: It is based on the fact that a loud sound of 70-100 dB above the threshold of hearing of paicular ear, causes bilateral contraction of the stapedial muscle which can be detected by tympanometry.This can be seen both in the stimulating ear (ipsilateral ear) and in the non stimulating ear (contralateral ear).', 'role': 'assistant'}]