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
Viper snake occurs in -a) Hematotoxicb) Vasculotoxicc) Myotoxicd) Hepatotoxice) Neurotoxic 
Select and explain. 
A. ab, B. ace, C. bde, D. bc
A: ab
Answer: A: ab 
Explanation: Viper venom is vasculotoxic and contains hemolysin & thromboplastin, which lead to coagulation abnormalities.