Messages from one brain neuron to another pass over a synaptic cleft where neurotransmitters assist the messages to jump between neurons. How do

Messages from one brain neuron to another pass over a synaptic cleft where neurotransmitters assist the messages to jump between neurons. How do these messages move from neuron to neuron?

a) From postsynaptic neuron to presynaptic neuron

b)From the axon of one neuron to the dendrite of the next neuron

c) Back and forth between the neurons based on intensity of the impulse

d) From the storage vesicles in one neuron to the receptor sites of the next neuron