Identify the correct sequence of action potential transmission as it arrives at the axon terminal from the choices given below:

• A
  Axon terminal $\rightarrow$ Post-synaptic membrane $\rightarrow$ Synaptic cleft $\rightarrow$ Synaptic vesicles $\rightarrow$ Post-synaptic neuron
• B
  Axon terminal $\rightarrow$ Synaptic vesicles $\rightarrow$ Post-synaptic membrane $\rightarrow$ Synaptic cleft $\rightarrow$ Post-synaptic neuron
• C
  Axon terminal $\rightarrow$ Synaptic vesicles $\rightarrow$ Synaptic cleft $\rightarrow$ Post-synaptic membrane $\rightarrow$ Post-synaptic neuron
• D
  Axon terminal $\rightarrow$ Synaptic cleft $\rightarrow$ Synaptic vesicles $\rightarrow$ Post-synaptic neuron $\rightarrow$ Post-synaptic membrane