67. The following events are steps of neural transmission at a chemical synapse. Please choose the correct sequence of events.(1) Neurotransmitter binds with receptors associated with the postsynaptic membrane.(2) Calcium ions rush into neuron's cytoplasm.(3) The ligand-gated ion channels open.(4) An action potential depolarizes the membrane of the axon terminal.(5) The synaptic vesicles release neurotransmitter into the synaptic cleft.
(A) 1 → 2 → 3 → 4 → 5
(B) 2 → 3 → 5 → 4 → 1
(C) 3 → 2 → 5 → 1 → 4
(D) 4 → 2 → 5 → 1 → 3
(E) 5 → 1 → 2 → 3 → 4