Realizing that this process varies at different synapses and ranges in effectiveness, synaptic transmission can be terminated in which of the following way(s)?
1) Reuptake of neurotransmitters by the presynaptic neuron
2) Degradation of neurotransmitters by enzymes
3) Diffusion of neurotransmitters away from the synapse
4) Inhibition of neurotransmitter release by the postsynaptic neuron