Having Received Messages from Hundreds or Thousands of Other Neurons

Multiple Choice

Having received messages from hundreds or thousands of other neurons, a postsynaptic neuron will fire if

A) all of its incoming messages are inhibitory in nature.
B) it is being stimulated by neuromodulators rather than simple neurotransmitters.
C) the combined incoming excitatory and inhibitory signals produce a large enough depolarization.
D) the combined incoming excitatory and inhibitory signals produce a large enough hyperpolarization.