This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
Criteria for Brainstem death includes 
Select and explain. 
A. Positive Doll's eye Reflex, B. Absent pupillary light reflex and delated pupils, C. Pinpoint pupils, D. Positive vestsibulo-ocular reflex
B: Absent pupillary light reflex and delated pupils
Answer: B: Absent pupillary light reflex and delated pupils 
Explanation: Harrison's principles of internal medicine 17th edition. *Cardinal signs of death are cessation of cardiac function and respiration,pupils become fixed,body becomes cool,muscles and incontinence may occur