This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries, Subject name: Forensic Medicine
In hypothermia, cause of death is - 
Select and explain. 
A. Stroke, B. Cardiac arrest, C. Pulmonary embolism, D. Asphyxia
B: Cardiac arrest
Answer: B: Cardiac arrest 
Explanation: Ans. is 'b' i.e., Cardiac arrest o The pulse rate slows as body tempreature drops, such that it can become difficult to tell if there are signs of life,o Normal sinus rhythm becomes sinus bradycardia slow atrial fibrillation and other slow heart rhythms before asystole ensues.