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
All of the following causes decreased clotting of blood after death, EXCEPT: 
Select and explain. 
A. CO poisoning, B. Amniotic fluid embolism, C. Puerperal sepsis, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: Decreased clotting of blood is seen ceain case of rapid death from asphyxia. It is also seen in death due to CO poisoning, ceain cases of septicaemia, amniotic fluid embolism, hypofibrinogenemia, retained aboion, puerperal sepsis etc. Ref: The Essentials of Forensic Medicine and Toxicology by Narayana Reddy, Edition 21, Page 95