In the case of somatic neuromuscular neurons, the arrival of a nerve impulse at the axon terminal immediately triggers ________.

A) a change in the permeability of the postsynaptic plasma membrane
B) the release of acetylcholine (ACh) at the presynaptic membrane
C) the generation of an action potential in the axon
D) long-lived effects at the synaptic membrane
E) an action potential