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
[{'content': 'Mirror test is used to \nSelect and explain. \nA. Assessment of cessation of respiration, B. Assessment for tremors, C. Assessment for hea function, D. Assessment for brain function', 'role': 'user'}, {'content': "Answer: A \nExplanation: Cessation of respiration : this should be complete and continuous. Complete stoppage of respiration for more than 5 minutes usually causes death. Respiration may stop for very sho period without causing death. Feather test, mirror test and Winslow's test have only historical impoance. Ref: Dr. NARAYANAN REDDYS TEXTBOOK OF FORENSIC MEDICINE PAGE 144", 'role': 'assistant'}]