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: Pharmacology
Cholinesterase activators are useful for the treatment of which poisoning? 
Select and explain. 
A. Paraquat, B. Parathion, C. Carbamates, D. Organochlorocompounds
B: Parathion
Answer: B: Parathion 
Explanation: None