Neurotransmitter action could be prevented, or disrupted, if a drug or other agent ________.
A. blocked voltage-gated Ca2+ channels in the presynaptic membrane
B. decreased the concentration of SNARE complexes in the postsynaptic cell
C. increased the expression of CAMs in the postsynaptic membrane
D. decreased the distance between the pre- and postsynaptic membranes
Answer: A
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