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: Anaesthesia
During anesthesia, which is least affected 
Select and explain. 
A. Visual evoked response, B. Somatosensory evoked potential, C. Brainstem auditory evoked potential, D. Motor evoked potential
C: Brainstem auditory evoked potential
Answer: C: Brainstem auditory evoked potential 
Explanation: C i.e. Brainstem auditory evoked potential Brain stem auditory evoked potential (BAEP) is most resistant (i.e. least affected) during anesthesiaQ.