When an Action Potential Reaches the End of the Axon

Multiple Choice

When an action potential reaches the end of the axon terminal, it:

A) reverses direction and returns to the cell body.
B) causes synaptic vesicles to break open and release molecules of neurotransmitter.
C) causes pores on the axon terminal to open and receive neurotransmitters from other neurons.
D) hops across the synaptic cleft to the next neuron.