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: Forensic Medicine
Brainstem dead are all, except: JIPMER 08 
Select and explain. 
A. Weaned off from ventilator, no respiration for 15 sec, B. Absent pupillary response, C. Absent nystagmus, D. Absent corneal reflex
A: Weaned off from ventilator, no respiration for 15 sec
Answer: A: Weaned off from ventilator, no respiration for 15 sec 
Explanation: Ans.Weaned off from ventilator, no respiration for 15 sec