Place these events in the order in which they occur after a presynaptic neuron releases acetylcholine into the synaptic cleft
-A presynaptic neuron releases acetylcholine into a synaptic cleft.
-A postsynaptic neuron releases acetylcholine into a different synaptic cleft.

a. Ligand-gated Na⁺ channels open, causing an influx of Nations.
b. Voltage-gated Na⁺ channels open in the axon.
c. Local membrane depolarization in the axon triggers an efflux of K⁺ ions.
d. Membrane depolarization triggers voltage-gated Ca²⁺ channels to open.
e. Vesicles containing a neurotransmitter fuse with the plasma membrane.