This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
Mechanism of action of oximes is 
Select and explain. 
A. Inhibiting cholinergic receptors, B. Reactivating cholinesterase, C. Inhibiting cholinesterase, D. Reactivating cholinergic receptors
B: Reactivating cholinesterase
Answer: B: Reactivating cholinesterase 
Explanation: Oximes are acetylcholinesterase reactivators which are used in OP poisoning, not in carbamate poisoning Ref: KDT 6th ed pg 105