Which One of the Following Statements Most Accurately Describes a Neuron's

Multiple Choice

Which one of the following statements most accurately describes a neuron's threshold of excitation?

A) A neuron responds when it is stimulated by some of its neighboring neurons, but not when it is stimulated by other neighbors.
B) A neuron fires only when its electrical charge reaches a particular level.
C) A neuron is receptive to stimulation from other neurons only at points where there are gaps in its myelin sheath.
D) A neuron will fire at a maximum rate of no more than once every three seconds.