In the following diagram showing axon terminal and synapse A, B, C, D and E respectively represent

• A-axon terminal, B-synaptic cleft, C-synaptic vesicles, D-neurotransmitters, E-receptors

• A- axon terminal, B-synaptic vesicles, C-synaptic cleft, D-receptors, E-neurotransmitters

•  A-synaptic cleft, B-synaptic vesicles, C-axon terminal, D-neurotransmitters, E-receptors

•  A-synaptic vesicles, B-axon terminal, C-synaptic vesicles, D-neurotransmitters, E-receptors