Which of the following stops the action of acetylcholine?

Acetylcholinesterase is the enzyme that rapidly breaks down acetylcholine at synaptic clefts and neuromuscular junctions, terminating its action. This is crucial for proper nerve signaling and muscle function. Acetylcoenzyme-A is involved in metabolism, Acetylcysteine is a mucolytic drug, and Acetyltransferase transfers acetyl groups.