An action potential has just arrived at the terminal buttons of a neuron.Which event will occur immediately

A)  Neurotransmitters will be taken up by the postsynaptic neuron. 
B)  Neurotransmitters will be pulled back into the presynaptic neuron. 
C)  Neurotransmitters will be manufactured in the synaptic vesicles. 
D)  Neurotransmitters will be released into the synaptic cleft.

When an action potential arrives at the terminal buttons of a neuron, neurotransmitters will be released into the synaptic cleft. This process is known as synaptic transmission and allows for communication between neurons. The neurotransmitters will then bind to specific receptors on the postsynaptic neuron, leading to a variety of effects depending on the neurotransmitter and receptor type. Options A and B describe the process of reuptake, which occurs after the neurotransmitter has already been released and taken its effect. Option C is incorrect as neurotransmitters are not manufactured at the terminal buttons, but rather are synthesized within the cell body and transported to the terminal buttons for release.