During synaptic transmission at a chemical synapse:
A. The presynaptic and postsynaptic cells' cytoplasms are in direct contact through gap junctions.
B. The postsynaptic cell releases neurotransmitters from its dendrites.
C. The presynaptic cell has receptors for neurotransmitters on its synaptic terminals.
D. None of the above.
E. B. and C.