A Drug That Activates a Presynaptic Autoreceptor Will Usually

A drug that activates a presynaptic autoreceptor will usually

A) reduce the release of the neurotransmitter from the axon terminal.
B) alter the uptake of the neurotransmitter into the axon terminal.
C) block the opening of ion channels in the postsynaptic membrane.
D) increase the release of the neurotransmitter from the axon terminal.
E) be expected to act as an agonist for this synapse.