Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) A neuron fires in response to every message it receives.
B) Signals above the threshold of excitation will prevent a neuron from firing.
C) Impulses in myelinated neurons may reach speeds of nearly 400 feet per second.
D) The strength (intensity) of a neuron's action potential depends on the strength of its excitation.