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
Cholinesterase is seen in venom of: DNB 08 
Select and explain. 
A. Elapids, B. Vipers, C. Sea snakes, D. All
A: Elapids
Answer: A: Elapids 
Explanation: Ans. Elapids