This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Death and postmortem changes, Subject name: Forensic Medicine
Reflex not involved in Harvard's criteria 
Select and explain. 
A. Gag reflex, B. Grimace reflex, C. Oculocephalic reflex, D. Tendon reflex
D: Tendon reflex
Answer: D: Tendon reflex 
Explanation: Harvard's criteria: ventilator is put off for 10 minutes and following responses are noted. Spontaneous respiration Spontaneous circulation Pupillary reflex. Corneal reflex Ocular reflex- oculocephalic and oculovestibular Grimace reflex Gag reflex Flat EEG Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 17